CN210416074U - Bearing trolley and wheels thereof - Google Patents
Bearing trolley and wheels thereof Download PDFInfo
- Publication number
- CN210416074U CN210416074U CN201920871495.3U CN201920871495U CN210416074U CN 210416074 U CN210416074 U CN 210416074U CN 201920871495 U CN201920871495 U CN 201920871495U CN 210416074 U CN210416074 U CN 210416074U
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- Prior art keywords
- wheel
- bearing
- roller
- sealing
- ring
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Abstract
The utility model relates to a bearing trolley and wheel thereof, bearing trolley wheel includes: the roller is internally provided with a bearing so as to be rotatably assembled on a wheel shaft of the bearing trolley through the bearing; the outer wheel cover is covered and fixed on the axial outer side of the roller; the roller is provided with a sealing surface which is in sealing fit with the axial outer side surface of the roller, one of the sealing surface and the axial outer side surface is provided with an annular bulge, and the other one is provided with an annular groove which is in splicing fit with the annular bulge; the inner side wheel ring cover is fixed on the axial inner side of the roller wheel and is provided with a matching surface in contact fit with the axial inner side surface of the roller wheel, and an inner hole of the inner side wheel ring cover is used for a wheel shaft of the bearing trolley to pass through; the radial inner side of the inner side wheel ring cover is provided with a sealing groove, and a sealing ring which is used for being matched with the wheel shaft in a rotating and sealing mode is arranged in the sealing groove, so that foreign matters are prevented from entering wheel gaps, and the abrasion between wheels of the bearing trolley and the wheel shaft is reduced.
Description
Technical Field
The utility model relates to a bearing trolley, bearing trolley wheel.
Background
In the prior art, two conveying modes of workpieces in the shot blasting procedure are an air suspension type conveying mode and a ground rail conveying mode, wherein the ground rail conveying mode is to place and fix the workpieces on a bearing trolley, and the workpieces finish shot blasting treatment in the process of moving along with the bearing trolley.
Because the splashing speed of the steel shots in the shot blasting process is high and can reach 76m/s, the steel shots splashed around can violently impact the bearing trolley and even enter wheel gaps, the abrasion of the wheels and the wheel shafts is aggravated, and the service life of the bearing trolley is shortened. Therefore, the wheel capable of effectively preventing foreign matters from entering the wheel gap is urgently needed, so that the bearing trolley meets the use requirements under shot blasting and other severe production conditions.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bearing trolley wheel to prevent that the foreign matter from getting into the wheel gap, reduce the wearing and tearing of bearing trolley wheel and axletree, the utility model aims at still providing a bearing trolley to solve among the prior art bearing trolley and seriously cause the problem that bearing trolley life is short because of wheel and axletree wearing and tearing.
The utility model discloses a bearing trolley wheel adopts following technical scheme:
the load bearing trolley wheel comprises: the roller is internally provided with a bearing so as to be rotatably assembled on a wheel shaft of the bearing trolley through the bearing;
the outer wheel cover is covered and fixed on the axial outer side of the roller; the roller is provided with a sealing surface which is in sealing fit with the axial outer side surface of the roller, one of the sealing surface and the axial outer side surface is provided with an annular bulge, and the other one is provided with an annular groove which is in splicing fit with the annular bulge;
the inner side wheel ring cover is fixed on the axial inner side of the roller wheel and is provided with a matching surface in contact fit with the axial inner side surface of the roller wheel, and an inner hole of the inner side wheel ring cover is used for a wheel shaft of the bearing trolley to pass through; the radial inner side of the inner side wheel ring cover is provided with a sealing groove, and a sealing ring which is used for being matched with the wheel shaft in a rotating and sealing mode is arranged in the sealing groove.
The utility model has the advantages that: the outer wheel cover is covered on the axial outer side of the roller, and is in sealing fit with the axial outer side face of the roller through a sealing surface and the insertion of the annular bulge and the annular groove, so that the outer side of the bearing trolley wheel shaft is protected, and foreign matters such as shot blasting and the like are prevented from entering wheel gaps from the outer side of the roller shaft; the inner side wheel ring cover is fixed on the axial inner side of the roller, is in contact fit with the axial inner side surface of the roller through a matching surface, and is in sealing fit with the rotation of the wheel shaft through a sealing ring, so that the inward protection of the wheel shaft of the bearing trolley is realized, and foreign matters such as shot blasting and the like are prevented from entering wheel gaps from the outer side of the roller shaft; thereby preventing foreign matters from entering wheel gaps and reducing the abrasion between wheels and wheel shafts of the bearing trolley.
According to the preferable technical scheme, an inner hole of the inner side wheel ring cover is a stepped hole comprising a large-hole-diameter section, a middle-hole-diameter section and a small-hole-diameter section, wherein the large-hole-diameter section is arranged close to the roller, the small-hole-diameter section is arranged far away from the roller, a sealing check ring is arranged in the small-hole-diameter section, the sealing check ring is pressed on an inner end face of the outer ring or the inner ring of the bearing along the axial direction of the roller through the inner side wheel ring cover, and the sealing groove is formed by the middle-.
Has the advantages that: the hole sets up to the shoulder hole, and the sealing washer still plays and separates sealing washer and bearing except playing the effect of location bearing, avoids sealing washer and bearing to interfere frictional effect, and the sealing washer realizes bearing trolley wheel axle multiple seal to the inboard with the sealing washer cooperation simultaneously, further increases the protective effect to bearing trolley wheel.
Preferably, the bearing is a deep groove ball bearing, and the sealing surface is pressed against the outer end surface of the bearing outer ring along the axial direction of the roller.
Has the advantages that: therefore, the wheel cover on the outer side plays a role in positioning the bearing besides a sealing function, a special bearing retainer ring is prevented from being arranged to fix the bearing, and the integral structure of the wheel of the bearing trolley is simplified.
Preferably, the outer wheel cover is detachably fixed to the roller by a fastener.
Has the advantages that: the maintenance and the replacement of the roller or the wheel cover on the outer side are convenient.
As a preferable technical scheme, the inner side wheel ring cover is detachably fixed on the roller through a connecting piece.
Has the advantages that: the replacement or maintenance of the roller, the inner side wheel ring cover or the sealing ring is convenient.
The utility model discloses a bearing trolley adopts following technical scheme:
the load-bearing trolley comprises: the frame is used for placing a workpiece; the wheel shaft is assembled on the frame; the device also comprises a bearing trolley wheel which is assembled on the wheel shaft in a rolling way;
the load bearing trolley wheel comprises: the roller is internally provided with a bearing so as to be rotatably assembled on a wheel shaft of the bearing trolley through the bearing; the outer wheel cover is covered and fixed on the axial outer side of the roller; the roller is provided with a sealing surface which is in sealing fit with the axial outer side surface of the roller, one of the sealing surface and the axial outer side surface is provided with an annular bulge, and the other one is provided with an annular groove which is in splicing fit with the annular bulge;
the inner side wheel ring cover is fixed on the axial inner side of the roller wheel and is provided with a matching surface in contact fit with the axial inner side surface of the roller wheel, and an inner hole of the inner side wheel ring cover is used for a wheel shaft of the bearing trolley to pass through; the radial inner side of the inner side wheel ring cover is provided with a sealing groove, and a sealing ring which is used for being matched with the wheel shaft in a rotating and sealing mode is arranged in the sealing groove.
The utility model has the advantages that: the outer wheel cover is covered on the axial outer side of the roller, and is in sealing fit with the axial outer side face of the roller through a sealing surface and the insertion of the annular bulge and the annular groove, so that the outer side of the bearing trolley wheel shaft is protected, and foreign matters such as shot blasting and the like are prevented from entering wheel gaps from the outer side of the roller shaft; the inner side wheel ring cover is fixed on the axial inner side of the roller, is in contact fit with the axial inner side surface of the roller through a matching surface, and is in sealing fit with the rotation of the wheel shaft through a sealing ring, so that the inward protection of the wheel shaft of the bearing trolley is realized, and foreign matters such as shot blasting and the like are prevented from entering wheel gaps from the outer side of the roller shaft; thereby preventing foreign matters from entering wheel gaps, reducing the abrasion between wheels and wheel shafts of the bearing trolley and prolonging the service life of the bearing trolley.
According to the preferable technical scheme, an inner hole of the inner side wheel ring cover is a stepped hole comprising a large-hole-diameter section, a middle-hole-diameter section and a small-hole-diameter section, wherein the large-hole-diameter section is arranged close to the roller, the small-hole-diameter section is arranged far away from the roller, a sealing check ring is arranged in the small-hole-diameter section, the sealing check ring is pressed on an inner end face of the outer ring or the inner ring of the bearing along the axial direction of the roller through the inner side wheel ring cover, and the sealing groove is formed by the middle-.
Has the advantages that: the hole sets up to the shoulder hole, and the sealing washer still plays and separates sealing washer and bearing except playing the effect of location bearing, avoids sealing washer and bearing to interfere frictional effect, and the sealing washer realizes bearing trolley wheel axle multiple seal to the inboard with the sealing washer cooperation simultaneously, further increases the protective effect to bearing trolley wheel.
Preferably, the bearing is a deep groove ball bearing, and the sealing surface is pressed against the outer end surface of the bearing outer ring along the axial direction of the roller.
Has the advantages that: therefore, the wheel cover on the outer side plays a role in positioning the bearing besides a sealing function, a special bearing retainer ring is prevented from being arranged to fix the bearing, and the integral structure of the wheel of the bearing trolley is simplified.
Preferably, the outer wheel cover is detachably fixed to the roller by a fastener.
Has the advantages that: the maintenance and the replacement of the roller or the wheel cover on the outer side are convenient.
As a preferable technical scheme, the inner side wheel ring cover is detachably fixed on the roller through a connecting piece.
Has the advantages that: the replacement or maintenance of the roller, the inner side wheel ring cover or the sealing ring is convenient.
As a preferable technical scheme, the bearing trolley further comprises a bearing inner ring pressing plate fixed at the axial outer end of the wheel shaft, and the bearing inner ring pressing plate is pressed on the outer end face of the bearing inner ring along the axial direction of the wheel shaft.
Has the advantages that: the bearing inner ring is assembled through the bearing inner ring pressing plate, the axial outer end of the bearing is flush with the outer end of the wheel axle, the length of the wheel axle is favorably reduced, and materials are saved.
According to a preferable technical scheme, the wheel shaft is a stepped shaft, and a shaft shoulder of the stepped shaft is pressed on an inner end face of the bearing inner ring along the axial direction of the wheel shaft.
Has the advantages that: the special arrangement of a bearing retainer ring for positioning the inner ring of the bearing is avoided, and the integral structure of the bearing trolley is simplified.
Drawings
FIG. 1 is a schematic structural view of a specific embodiment of a load-carrying cart wheel according to the present invention;
FIG. 2 is a schematic view of the load carrying cart of FIG. 1 with wheels mounted on the wheel axles;
fig. 3 is a schematic structural view of a specific embodiment of the carrying cart of the present invention.
In the figure: 1-a roller; 2-outside wheel covers; 3-bearing inner ring pressing plate; 4-hexagon bolts; 5-deep groove ball bearing; 6-spacer bush; 7-sealing retainer ring; 8-sealing ring; 9-inner wheel ring cover; 10-wheel axle; 11-a frame; 12-carrying trolley wheels; 13-a bolt; 14-a nut; 21-an annular projection; 101-ring groove.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a bearing trolley wheel's concrete embodiment, as shown in figure 1, bearing trolley wheel includes gyro wheel 1, outside wheel lid 2 and inboard wheel ring lid 9, and gyro wheel 1 is inside to be equipped with two deep groove ball bearings 5, separates with spacer 6 between two deep groove ball bearings 5, makes two bearing mutual noninterference. As shown in fig. 2, the roller 1 is rotatably assembled on the wheel axle 10 of the bearing trolley through two deep groove ball bearings 5, and the two deep groove ball bearings 5 can reduce the friction force between the roller 1 and the wheel axle 10, so as to ensure that the wheels of the bearing trolley can flexibly rotate during heavy load.
The outer wheel cover 2 covers the axial outer side of the roller 1 and is fixed on the roller 1 through a fastener. The outer wheel cover 2 is provided with a sealing surface which is in sealing fit with the axial outer side surface of the roller 1, the sealing surface is provided with an annular bulge 21, and the axial outer side surface of the roller 1 is provided with an annular groove 101 which is in splicing fit with the annular bulge 21; through the sealing fit between the sealing surface and the axial outer side surface and the inserting fit between the annular bulge 21 and the annular groove 101, a straight-through gap between the outer wheel cover 2 and the roller 1 can be cut off, foreign matters are prevented from entering between the roller 1 and the wheel shaft 10 from the axial outer side of the roller 1, and parts in the roller 1 are protected from being damaged accidentally.
In addition, the sealing surface is pressed on the outer end surface of the bearing outer ring along the axial direction of the roller 1, and the function of positioning the bearing is achieved.
The inner wheel ring cover 9 is fixed on the axial inner side of the roller 1 through a connecting piece. As shown in fig. 2, the wheel of the load-bearing trolley further comprises four bolts 13 uniformly distributed along the circumferential direction of the roller 1, each bolt 13 is in threaded connection with a nut 14, and the outer wheel cover 2 and the inner wheel ring cover 9 are fixed on two axial sides of the roller 1 through the bolts 13 and the nuts 14. The bolt 13 and the nut 14 constitute a fastener in this embodiment, and also constitute a connecting member in this embodiment.
As shown in fig. 2, the inner hole of the inner wheel ring cover 9 is used for the wheel shaft 10 of the carrying trolley to pass through, and the inner wheel ring cover 9 is provided with a matching surface which is in contact fit with the axial inner side surface of the roller 1. In this embodiment, the inner hole of the inner wheel ring cover 9 is a stepped hole including a large-diameter section, a middle-diameter section and a small-diameter section, wherein the large-diameter section is arranged close to the roller 1, and the small-diameter section is arranged far away from the roller 1; the middle hole diameter section is internally provided with a sealing ring 8, when the bearing trolley wheel is assembled on the wheel shaft 10, the sealing ring 8 is in rotating sealing fit with the wheel shaft 10, and the middle hole diameter section is enclosed to form the sealing groove. And a sealing retainer ring 7 is arranged in the small-aperture section, and the sealing retainer ring 7 is axially pressed on the inner end surface of the bearing outer ring along the roller 1 through an inner side wheel ring cover 9 to play a role in positioning the bearing.
The sealing ring 8 can prevent impurities from entering the bearing and the roller 1; the sealing retainer ring 7 can avoid interference friction between the sealing retainer ring 7 and the bearing; the inboard wheel ring cap 9 serves to protect the seal ring 8 from accidental damage. In order to avoid interference between the seal retainer 7 and the bearing inner ring, the seal retainer 7 in this embodiment is provided with an avoidance concave portion for avoiding the bearing inner ring. As shown in fig. 2, when the load carrier wheel is mounted on the wheel axle 10, the inner wheel ring cover 9 is spaced from the wheel axle 10; the sealing ring 8 is rotatably and hermetically assembled between the wheel shaft 10 and the inner wheel ring cover 9; the sealing collar 7 is also spaced from the wheel axle 10.
In other embodiments, an annular projection may be provided on the axially outer side of the roller, while an annular groove is provided on the sealing surface, which engages with the annular projection.
In other embodiments, the inner hole of the inner wheel ring cover may only include a large-diameter section and a small-diameter section, but not include an intermediate-diameter section, in which case, the sealing ring is disposed in the small-diameter section, and a pressing protrusion facing the bearing is protruded on the side of the inner wheel ring cover close to the roller, and the pressing protrusion presses against the outer ring of the bearing along the axial direction of the roller to position the bearing.
In other embodiments, a certain interval can be arranged between the inner wheel ring cover and the bearing, and the sealing ring and the sealing retainer ring are arranged in the interval; or only the sealing retainer ring is arranged in the interval, and meanwhile, the annular groove is arranged on the side surface of the inner wheel ring cover close to the wheel shaft, and the sealing ring is arranged in the annular groove.
In other embodiments, an avoiding concave portion of the avoiding bearing can be arranged on the outer wheel cover, a pressing plate is arranged in the avoiding concave portion, the pressing plate is pressed and assembled between the avoiding concave portion and the bearing outer ring, and the pressing plate and the outer wheel cover jointly play a role in positioning the bearing.
In other embodiments, the outboard wheel cover may be secured to the wheel by riveting or welding; or the bolt holes are formed in the outer wheel cover, the threaded holes corresponding to the bolt holes are formed in the roller, and the outer wheel cover is fixed on the roller through bolts penetrating through the bolt holes and connected in the threaded holes in a threaded mode.
In other embodiments, the inboard wheel ring cover may be fixed to the roller by riveting or welding; or the bolt holes are formed in the inner wheel ring cover, the threaded holes corresponding to the bolt holes are formed in the roller, and the inner wheel ring cover is fixed on the roller through bolts which penetrate through the bolt holes and are in threaded connection with the threaded holes.
In other embodiments, the two deep groove ball bearings can be replaced by two tapered roller bearings, in which case, the outer rings of the two tapered roller bearings are separated by a shaft sleeve, the sealing retainer ring is pressed against the inner end face of the inner ring of the bearing along the roller axial direction by the inner wheel ring cover, and the end faces of the two outer rings of the bearing, which are arranged oppositely, do not need a stopping part for stopping.
The specific embodiment of the carrying trolley of the present invention, as shown in fig. 3, comprises a frame 11 for placing a workpiece, and a wheel axle 10 assembled on the frame 11; the carrier further includes carrier wheels rotatably mounted on the wheel shafts 10, and the carrier wheels in this embodiment are the carrier wheels described in the above specific embodiment of carrier wheels, and will not be described herein again.
As shown in fig. 2, the carrying trolley further includes a bearing inner ring pressing plate 3, the bearing inner ring pressing plate 3 is fixed at the axial outer end of the wheel shaft 10 through a hexagon bolt 4 and is pressed against the outer end surface of the bearing inner ring along the axial direction of the wheel shaft 10, in this embodiment, the wheel shaft 10 is a stepped shaft, a shaft shoulder of the stepped shaft is pressed against the inner end surface of the bearing inner ring, and the bearing inner ring is prevented from moving along the axial direction by the bearing inner ring pressing plate 3 and the shaft shoulder.
In other embodiments, the axially outer end of the wheel axle can project beyond the bearing, while an external thread is provided on the part projecting beyond the bearing, on which external thread a nut is screwed, and the axially inner end of the nut bears against the outer end face of the bearing inner ring for axial positioning.
In other embodiments, the bearing and the shoulder of the stepped shaft may be arranged at an interval, and a retaining ring for positioning the bearing is arranged between the shoulder and the inner ring of the bearing, and the retaining ring is pressed against the inner end surface of the inner ring of the bearing along the axial direction of the wheel shaft.
Claims (8)
1. Bearing trolley wheel, characterized by includes: the roller is internally provided with a bearing so as to be rotatably assembled on a wheel shaft of the bearing trolley through the bearing;
the outer wheel cover is covered and fixed on the axial outer side of the roller; the roller is provided with a sealing surface which is in sealing fit with the axial outer side surface of the roller, one of the sealing surface and the axial outer side surface is provided with an annular bulge, and the other one is provided with an annular groove which is in splicing fit with the annular bulge;
the inner side wheel ring cover is fixed on the axial inner side of the roller wheel and is provided with a matching surface in contact fit with the axial inner side surface of the roller wheel, and an inner hole of the inner side wheel ring cover is used for a wheel shaft of the bearing trolley to pass through; the radial inner side of the inner side wheel ring cover is provided with a sealing groove, and a sealing ring which is used for being matched with the wheel shaft in a rotating and sealing mode is arranged in the sealing groove.
2. The cart wheel according to claim 1, wherein the inner bore of the inner wheel cover is a stepped bore comprising a large bore section, a middle bore section and a small bore section, wherein the large bore section is disposed adjacent to the roller, the small bore section is disposed away from the roller, and a sealing ring is disposed in the small bore section, the sealing ring being pressed against the inner end surface of the outer or inner race of the bearing axially by the inner wheel cover, the sealing ring being defined by the middle bore section.
3. The load carrying trolley wheel as claimed in claim 1 or claim 2, wherein the bearing is a deep groove ball bearing, and the sealing surface bears axially against the outer end surface of the bearing outer race.
4. Load carrying trolley wheel according to claim 1 or 2, characterized in that the outer wheel cover is detachably fastened to the roller by means of fastening elements.
5. Load carrying trolley wheel according to claim 1 or 2, characterized in that the inner wheel ring cover is detachably fixed to the roller wheel by means of a connecting element.
6. The load-carrying trolley comprises: the frame is used for placing a workpiece; the wheel shaft is assembled on the frame; the device also comprises a bearing trolley wheel which is assembled on the wheel shaft in a rolling way;
characterized in that the wheels of the load-bearing trolley are wheels of the load-bearing trolley as claimed in any one of claims 1 to 5.
7. The cart as claimed in claim 6, further comprising a bearing inner ring pressing plate fixed to the outer end of the axle, wherein the bearing inner ring pressing plate presses against the outer end surface of the bearing inner ring along the axle.
8. The carrying trolley according to claim 6, wherein the wheel shaft is a stepped shaft, and a shoulder of the stepped shaft is pressed against an inner end surface of the bearing inner ring along the axial direction of the wheel shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920871495.3U CN210416074U (en) | 2019-06-11 | 2019-06-11 | Bearing trolley and wheels thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920871495.3U CN210416074U (en) | 2019-06-11 | 2019-06-11 | Bearing trolley and wheels thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210416074U true CN210416074U (en) | 2020-04-28 |
Family
ID=70374725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920871495.3U Expired - Fee Related CN210416074U (en) | 2019-06-11 | 2019-06-11 | Bearing trolley and wheels thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210416074U (en) |
-
2019
- 2019-06-11 CN CN201920871495.3U patent/CN210416074U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 Termination date: 20210611 |