CN211034930U - Wheel main shaft locking structure and crown block wheel set with same - Google Patents
Wheel main shaft locking structure and crown block wheel set with same Download PDFInfo
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- CN211034930U CN211034930U CN201921394953.5U CN201921394953U CN211034930U CN 211034930 U CN211034930 U CN 211034930U CN 201921394953 U CN201921394953 U CN 201921394953U CN 211034930 U CN211034930 U CN 211034930U
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Abstract
The utility model belongs to the technical field of overhead traveling crane equipment, concretely relates to wheel main shaft locking structure and have its overhead traveling crane wheelset. The utility model provides a wheel spindle locking structure all is equipped with the axle sleeve including locating the epaxial first bearing unit of wheel, wheel hub and second bearing unit in proper order between first bearing unit and second bearing unit and the wheel hub, still includes first spacing unit and the spacing unit of second for to the axial injecing of wheel spindle. Through using the wheel spindle locking structure in the technical scheme, the limiting unit can use the plane of the bearing unit, which faces away from the hub, as a locking surface to be matched with the two ends of the wheel spindle, so that the wheel spindle and the bearing unit are combined into a whole, the wheel spindle and the bearing unit are prevented from axial movement, meanwhile, the shaft sleeve can also realize positioning and fastening between the hub and the bearing unit, and the axial movement of the wheel spindle is also prevented.
Description
Technical Field
The utility model belongs to the technical field of overhead traveling crane equipment, concretely relates to wheel main shaft locking structure and have its overhead traveling crane wheelset.
Background
At present, in the use process of a slag bridge car in the metallurgical industry, wheel sets of 16-ton bridge cranes and wheel sets of 20-ton bridge cranes run by using wheel sets (single wheel rims and double wheel rims) with the diameter of phi 350. When the crane starts and stops the cart, the wheel set of the cart can be subjected to opposite axial force due to the inertia effect, long-time operation is required, and the phenomenon that the main shaft of the wheel set and the bearing are axially moved in a crossing manner is easily caused. At present, the method for eliminating hidden dangers is to replace a new wheel set, but 2-3 hours are needed for replacing one wheel set, so that the production efficiency is seriously influenced.
Disclosure of Invention
The invention aims to at least solve the problem of axial movement between a main shaft of a wheel set and a bearing. The purpose is realized by the following technical scheme:
a first aspect of the present invention provides a wheel spindle locking structure, including:
the wheel hub structure comprises a first bearing unit, a wheel hub and a second bearing unit which are sequentially arranged on a wheel spindle, wherein shaft sleeves are arranged between the first bearing unit and the wheel hub, and between the second bearing unit and the wheel hub;
still include first spacing unit and the spacing unit of second, first spacing unit with first bearing unit's dorsad the plane of wheel hub be first locking face with the one end cooperation of wheel main shaft is connected, the spacing unit of second with the dorsad the plane of wheel hub be second locking face with the other end cooperation of wheel main shaft is connected, be used for right the axial injeciton of wheel main shaft.
Through using the wheel spindle locking structure in the technical scheme, the limiting unit can use the plane of the bearing unit, which faces away from the hub, as a locking surface to be matched with the two ends of the wheel spindle, so that the wheel spindle and the bearing unit are combined into a whole, the wheel spindle and the bearing unit are prevented from axial movement, meanwhile, the shaft sleeve can also realize positioning and fastening between the hub and the bearing unit, and the axial movement of the wheel spindle is also prevented.
In addition, according to the utility model discloses a wheel spindle locking structure still can have following additional technical characterstic:
in some embodiments of the present invention, the one end of the wheel spindle and the other end of the wheel spindle are both provided with threads, and the first limiting unit or the second limiting unit is fixedly connected by the threads.
In some embodiments of the present invention, the one end and the other end of the wheel spindle are further provided with a retaining groove.
In some embodiments of the present invention, the first limiting unit and the second limiting unit are round nuts, and the round nuts are engaged with the threads to lock.
In some embodiments of the present invention, a retaining pad is disposed between the round nut and the thread.
In some embodiments of the present invention, the first bearing unit further comprises a bearing, a bearing box, a blank cap and a through cap, the bearing is fixed in the bearing box, the through cap is disposed on the bearing box towards one side of the wheel hub, the blank cap is disposed on the bearing box facing away from one side of the wheel hub.
The utility model discloses an in some embodiments, the stifle includes bellying and fixed part, be equipped with in the bellying and hold the chamber that holds of round nut, the fixed part is equipped with the through-hole, be used for the stifle is in fixed on the bearing box.
In some embodiments of the present invention, the protruding portion is located along the protruding length of the axis direction of the blank cap with respect to the fixing portion and is not smaller than the height of the round nut.
In some embodiments of the present invention, the second bearing unit is also provided with a set of the bearing, the bearing housing, the blank cap and the through cap.
The utility model also provides a crown block wheel group, this crown block wheel group include the wheel spindle locking structure in the above-mentioned embodiment.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
fig. 1 schematically shows an overall sectional structure view of a wheel spindle locking structure according to an embodiment of the present invention;
figure 2 is a cross-sectional view of the closure of figure 1.
10: a wheel spindle;
20: first bearing unit, 201: first locking surface, 21: bearing, 22: bearing housing, 23: blank cap, 231: boss, 232: fixing part, 24: passing through the cover;
30: second bearing unit, 301: a second locking surface;
40: a hub;
50: a shaft sleeve;
60: first limit unit, 61: a round nut;
70: and a second limit unit.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Fig. 1 schematically shows an overall cross-sectional structure view of a wheel spindle locking structure according to an embodiment of the present invention. As shown in figure 1, the utility model provides a wheel main shaft locking structure and have its overhead traveling crane wheelset. The utility model provides a wheel spindle locking structure is including locating first bearing unit 20, wheel hub 40 and second bearing unit 30 on the wheel spindle 10 in proper order, first bearing unit 20 with second bearing unit 30 with all be equipped with axle sleeve 50 between the wheel hub 40, still include first spacing unit 60 and second spacing unit 70, first spacing unit 60 with first bearing unit 20 dorsad wheel hub 40's plane be first locking surface 201 with the one end cooperation of wheel spindle 10 is connected, second spacing unit 70 with second bearing unit 30 dorsad wheel hub 40's plane be second locking surface 301 with the other end cooperation of wheel spindle 10 is connected, it is right to be used for the axial injeciton of wheel spindle 10.
Through using the wheel spindle locking structure in the technical scheme, the limiting unit can be matched with the two ends of the wheel spindle 10 by taking the plane of the bearing unit, which is back to the hub 40, as a locking surface, so that the wheel spindle 10 and the bearing unit are combined into a whole, the wheel spindle 10 and the bearing unit are prevented from axially moving, meanwhile, the shaft sleeve 50 can also realize positioning and fastening between the hub 40 and the bearing unit, and the wheel spindle 10 is also prevented from axially moving.
Further, in the present embodiment, one end and the other end of the wheel spindle 10 are provided with threads, and the threads are fixedly connected with the first limiting unit 60 or the second limiting unit 70. The wheel spindle 10 in this embodiment has a diameter of 350mm, and is screwed with the first limiting unit 60 or the second limiting unit 70 for fixed connection. The two ends of the wheel spindle 10 are provided with the thread structures, and fastening operation can be performed in a thread locking mode, so that the bearing unit and the wheel spindle 10 can be combined into a whole, and relative movement between the wheel spindle 10 and the bearing unit is prevented.
Specifically, in the present embodiment, one end and the other end of the wheel spindle 10 are further provided with retaining grooves for receiving retaining pads, which have a width of 8 mm.
Specifically, in the present embodiment, the first limiting unit 60 and the second limiting unit 70 are both round nuts 61, and the diameter of the round nut 61 in the present embodiment is 80mm, so that the round nut can be locked by matching with a thread. The round nut 61 can be screwed and fixed with one end of the wheel spindle 10 by taking the plane of the first bearing unit 20, which faces away from the hub 40, as the first locking surface 201 through the thread at one end of the wheel spindle 10, so that the first bearing unit 20 and the wheel spindle 10 are combined into a whole, thereby preventing the relative movement of the wheel spindle 10 and the first bearing unit 20, and similarly, the round nut 61 can also be used for combining the second bearing unit 30 and the wheel spindle 10 into a whole, thereby preventing the relative movement of the wheel spindle 10 and the second bearing unit 30.
Further, in the present embodiment, a retaining pad is disposed between the round nut 61 and the thread, and the retaining pad can prevent the round nut 61 from loosening during the rotation of the wheel spindle 10.
Specifically, as shown in fig. 1, in the present embodiment, the first bearing unit 20 further includes a bearing 21, a bearing housing 22, a blank cap 23, and a through cap 24, and the bearing 21 is fixed in the bearing housing 22 for support of the wheel spindle 10 and friction reduction. The through cover 24 is disposed on a side of the bearing housing 22 facing the hub 40, and is used for sealing the bearing housing 22 and performing a dust sealing function. The blank cap 23 is arranged on one side of the bearing box 22, which is back to the hub 40, and the inner cavity of the blank cap 23 in the embodiment can also accommodate the round nut 61 while playing a role of sealing and dust prevention, so that interference during assembly can be avoided.
Further, in the present embodiment, fig. 2 is a cross-sectional structural view of the cap of fig. 1, as shown in fig. 2. The blank cap 23 comprises a protruding part 231 and a fixing part 232, and an accommodating cavity for accommodating the round nut 61 is arranged in the protruding part 231 and is used for accommodating the round nut 61 added after the wheel spindle 10 is improved. The fixing portion 232 is provided with a through hole for fixing the blank cap 23 to the bearing housing 22.
Specifically, in the present embodiment, the length of the protrusion 231 protruding in the axial direction of the blank cap 23 with respect to the fixing portion 232 is not less than the height of the round nut 61. The length of the bulge in the embodiment is 15mm, and the round nut can not interfere with the inner wall of the blank cap 23 when the blank cap 23 is assembled, so that the problem of assembly interference is prevented.
Specifically, in the present embodiment, the bearing 21 is a self-aligning roller bearing, model 22218, which can bear not only radial load but also axial load acting in both directions.
Further, in the present embodiment, as shown in fig. 1, the wheel spindle locking structure is a bilaterally symmetrical structure, so the second bearing unit 30 is also provided with a set of bearings, a bearing housing, a blank cap and a through cap.
The utility model also provides a crown block wheel group, wheel spindle locking structure including above.
Through using the overhead traveling crane wheel group among this technical scheme, spacing unit can use bearing unit's the plane of wheel hub dorsad as the locking surface and wheel main shaft both ends cooperation for main shaft and bearing unit combine to be a whole, have prevented that wheel main shaft and bearing unit from taking place the axial float, and the axle sleeve also can realize location and fastening between wheel hub and bearing unit simultaneously, has prevented main shaft axial float equally.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A wheel spindle locking arrangement, comprising:
the wheel hub structure comprises a first bearing unit, a wheel hub and a second bearing unit which are sequentially arranged on a wheel spindle, wherein shaft sleeves are arranged between the first bearing unit and the wheel hub, and between the second bearing unit and the wheel hub;
still include first spacing unit and the spacing unit of second, first spacing unit with first bearing unit's dorsad the plane of wheel hub be first locking face with the one end cooperation of wheel main shaft is connected, the spacing unit of second with the dorsad the plane of wheel hub be second locking face with the other end cooperation of wheel main shaft is connected, be used for right the axial injeciton of wheel main shaft.
2. The wheel spindle locking structure according to claim 1, wherein the one end and the other end of the wheel spindle are provided with threads, and the threads are fixedly connected with the first limiting unit or the second limiting unit.
3. The wheel spindle locking arrangement of claim 2, wherein the one end and the other end of the wheel spindle are further provided with anti-backup grooves.
4. The wheel spindle locking structure according to claim 2, wherein the first and second limiting units are round nuts, and the round nuts are matched with the threads for locking.
5. The wheel spindle locking arrangement of claim 4, wherein a retaining pad is provided between the round nut and the thread.
6. The wheel spindle locking structure according to claim 4, wherein the first bearing unit further comprises a bearing, a bearing housing, a blank cap, and a through cap, the bearing is fixed in the bearing housing, the through cap is disposed on a side of the bearing housing facing the hub, and the blank cap is disposed on a side of the bearing housing facing away from the hub.
7. The wheel spindle locking structure according to claim 6, wherein the blank cap comprises a protrusion and a fixing portion, the protrusion has a cavity for receiving the round nut therein, and the fixing portion has a through hole for fixing the blank cap to the bearing housing.
8. The wheel spindle locking structure according to claim 7, wherein the length of the protrusion in the axial direction of the blank cap with respect to the fixing portion is not less than the height of the round nut.
9. The wheel spindle locking arrangement according to claim 6, characterized in that the second bearing unit is also provided with a set of the bearings, the bearing housing, the blank cap and the through cap.
10. A crown block wheel set, characterized in that it has a wheel spindle locking arrangement according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921394953.5U CN211034930U (en) | 2019-08-26 | 2019-08-26 | Wheel main shaft locking structure and crown block wheel set with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921394953.5U CN211034930U (en) | 2019-08-26 | 2019-08-26 | Wheel main shaft locking structure and crown block wheel set with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211034930U true CN211034930U (en) | 2020-07-17 |
Family
ID=71530735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921394953.5U Active CN211034930U (en) | 2019-08-26 | 2019-08-26 | Wheel main shaft locking structure and crown block wheel set with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211034930U (en) |
-
2019
- 2019-08-26 CN CN201921394953.5U patent/CN211034930U/en active Active
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