CN213356791U - Pulley block structure for hoisting - Google Patents
Pulley block structure for hoisting Download PDFInfo
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- CN213356791U CN213356791U CN202021913844.2U CN202021913844U CN213356791U CN 213356791 U CN213356791 U CN 213356791U CN 202021913844 U CN202021913844 U CN 202021913844U CN 213356791 U CN213356791 U CN 213356791U
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- pulley block
- shaft
- wheel
- wheel shaft
- matching section
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Abstract
The invention provides a pulley block structure for hoisting, which comprises a wheel cover and a wheel shaft on the wheel cover, wherein a lifting lug is arranged on the wheel shaft; two side plates of the wheel cover are correspondingly provided with shaft holes, and two ends of the wheel shaft penetrate through the shaft holes and are fixed by the fixing components; the wheel shaft comprises a matching section in the middle and mounting sections symmetrically arranged at two ends of the matching section, the diameter of the matching section is larger than that of the mounting sections, and positioning surfaces are respectively formed at two ends of the matching section; the mounting sections are respectively provided with a pulley block; the lug plate of the lifting lug is provided with a matching hole in interference fit with the matching section, the lower end of the lug plate extends out of the wheel cover, and the tail end of the lug plate is fixed with a shaft sleeve. The pulley block mounting structure is reasonable in structural design, the middle of the wheel shaft is provided with the convex matching section, the mounting mode of interference fit with the matching hole in the lug plate is adopted, the pulley blocks are symmetrically mounted on two sides of the matching section, the wheel shaft effectively improves the positioning precision, the whole pulley block structure is guaranteed to have good stability, and the pulley block mounting structure cannot loosen after long-term use.
Description
Technical Field
The invention belongs to the technical field of hoisting equipment, and particularly relates to a pulley block structure for hoisting.
Background
The hoisting equipment is usually provided with a pulley block structure for connecting a sling and a lifting appliance, the lower end of the pulley block structure is provided with a mechanism connected with the lifting appliance, and the pulley block is matched with a steel wire rope to realize lifting adjustment. The commonly used pulley block structure is comparatively complicated among the prior art to overall stability is relatively poor, and the pulley block is not hard up easily in the use, produces and rocks or offset, influences the stability and the security of hoist and mount operation, consequently, needs to improve.
Disclosure of Invention
In view of this, the invention provides a pulley block structure for hoisting, which aims to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a pulley block structure for hoisting comprises a wheel cover and a wheel shaft on the wheel cover, wherein a lifting lug is arranged on the wheel shaft;
shaft holes are correspondingly formed in the two side plates of the wheel cover, and the two ends of the wheel shaft penetrate through the shaft holes and are fixed by the fixing assemblies;
the wheel shaft comprises a matching section in the middle and mounting sections symmetrically arranged at two ends of the matching section, the diameter of the matching section is larger than that of the mounting sections, and positioning surfaces are respectively formed at two ends of the matching section; the mounting sections are respectively provided with a pulley block;
the lug plate of the lifting lug is provided with a matching hole in interference fit with the matching section, the lower end of the lug plate extends out of the wheel cover, and the tail end of the lug plate is fixed with a shaft sleeve; the axial direction of the shaft sleeve is vertical to the axial direction of the wheel cover.
Furthermore, a reinforcing sleeve matched with the wheel shaft is arranged on the shaft hole; the reinforcing sleeve is provided with a shaft shoulder structure matched with the side plate, and the inner side of the reinforcing sleeve is provided with a positioning platform.
Furthermore, the wheel cover also comprises an arc-shaped bottom plate, a connecting plate is arranged on the bottom plate, and the lug plate and the connecting plate are fixed through a connecting assembly on the connecting plate.
Furthermore, the connecting assembly comprises a bolt, and the bolt sequentially penetrates through the connecting plate and the lug plate and is locked by a nut.
Further, the pulley block on each mounting section comprises at least two pulleys, and the pulleys are rotatably mounted on the wheel shaft through bearings.
Furthermore, the tail end of the mounting section of the wheel shaft is provided with a fixing part, and the diameter of the fixing part is smaller than that of the mounting section; the joint of the mounting section and the fixing part forms a limiting table, and fixing holes are distributed in the surface of the limiting table.
Furthermore, the end face of the fixed part is provided with a fabrication hole, and oil passing holes communicated with the fabrication hole are arranged at different positions on the mounting section.
Compared with the prior art, the invention has the following advantages:
the pulley block mounting structure is reasonable in structural design, the middle of the wheel shaft is provided with the convex matching section, the mounting mode of interference fit with the matching hole in the lug plate is adopted, the pulley blocks are symmetrically mounted on two sides of the matching section, the wheel shaft effectively improves the positioning precision, the whole pulley block structure is guaranteed to have good stability, and the pulley block mounting structure cannot loosen after long-term use. Meanwhile, the pulley blocks are symmetrically arranged on two sides of the matching section, the structural symmetry is good, the balance is good in the hoisting operation process, and the whole stress of the pulley block is relatively balanced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic view of the application of the side plate with the reinforcing sleeve in the inventive embodiment;
FIG. 4 is a schematic view of a reinforcing sleeve in an embodiment of the present invention;
FIG. 5 is a schematic view of an axle in an embodiment of the invention;
FIG. 6 is a schematic perspective view of an axle according to an embodiment of the present invention;
figure 7 is a schematic view of a lifting lug in an embodiment of the invention;
fig. 8 is a schematic view of an axle sleeve in an embodiment of the invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
A pulley block structure for hoisting is shown in figures 1 to 8 and comprises a wheel cover 1 and a wheel shaft 2 on the wheel cover, wherein a lifting lug 3 is arranged on the wheel shaft; the two side plates 8 of the wheel cover are correspondingly provided with shaft holes, and the two ends of the wheel shaft penetrate through the shaft holes and are fixed by the fixing assemblies.
The wheel shaft comprises a matching section 4 in the middle and mounting sections 5 symmetrically arranged at two ends of the matching section, the diameter of the matching section is larger than that of the mounting sections, and positioning surfaces 6 are respectively formed at two ends of the matching section; and the mounting sections are respectively provided with a pulley block 7.
For example, the end of the mounting section of the axle is provided with a fixing portion 22, the diameter of which is smaller than that of the mounting section; the joint of installation section and fixed part forms spacing platform 23, and spacing platform surface has all laid fixed orifices 24, and the fixed orifices generally is the screw hole, and fixed subassembly can be from the inside screw in screw 9 in the wheel axle curb plate outside, and this screw in screw hole realizes the fixed to the shaft. It should be noted that whether the axle can rotate or not generally does not affect the use of the pulley, so the installation requirement of the axle is generally only required to be axially positioned, and other excessive limitations are not required, and the ordinary design can be performed by the skilled in the art according to the requirement.
Be equipped with on the otic placode 10 of lug with cooperation section interference fit's mating holes 11, once accurate location back, the shaft forms wholly with the lug board, can avoid the aversion of traditional bearing in the use, the drunkenness scheduling problem. The lower end of the lug plate extends out of the wheel cover, and the tail end of the lug plate is fixed with a shaft sleeve 12; the axial direction of the shaft sleeve is vertical to the axial direction of the wheel cover. For example, as shown in fig. 8, a positioning section structure 26 is disposed in the middle of the shaft sleeve, rough machining sections 27 are symmetrically disposed on two sides of the positioning section, and during machining production, only finish machining needs to be performed on the inner wall of the positioning section structure to ensure the matching precision with the connecting shaft, so that the machining amount is reduced, the machining efficiency is improved, and the production cost is low.
In an optional embodiment, the thickening structure 13 is arranged at the position of the matching hole on the ear plate, in the specific implementation, the thickening structure can be a reinforcing plate welded and fixed on two sides of the ear plate, the matching hole is processed at the thickening structure after the reinforcing plate is welded and fixed, the processing precision is guaranteed, and the matching precision of the matching hole and the wheel shaft can be effectively guaranteed. The thickening structure plays effectual enhancement to the lug plate structure, when structural strength obtains improving, still can not increase the holistic weight of lug by a wide margin, and loaded back stability is good, and lug structure reliability is high, has good durability.
The shaft hole is provided with a reinforcing sleeve 14 matched with the wheel shaft; the reinforcing sleeve is provided with a shaft shoulder structure 15 matched with the side plate, and the inner side of the reinforcing sleeve is provided with a positioning table 16. Through arrange the reinforcement sleeve on the curb plate, effectively improved the structural strength who connects the part with the wheel hub, guarantee that the wheel casing has good structural strength, the durability is good.
The wheel cover also comprises an arc-shaped bottom plate 17, a connecting plate 18 is arranged on the bottom plate, and the lug plate and the connecting plate are fixed through a connecting component on the connecting plate. By way of example, the connection assembly comprises a bolt 19, which passes through the connection plate and the lug plate in turn, and is locked by a nut; or the connecting component comprises a screw which is directly screwed into the connecting hole on the lug plate.
The pulley block on each mounting section comprises at least two pulleys 21, the pulleys are rotatably mounted on (mounting sections of) the wheel shaft through bearings, the pulleys on the mounting sections are arranged side by side, the bearing end face on the innermost pulley abuts against the positioning face of the matching section, and the bearing end face on the outermost pulley abuts against the surface of the positioning table to form reliable positioning, and the pulley block is firm in fixation and good in stability.
The end face of the fixed part is provided with a fabrication hole 25, different positions on the mounting section are provided with oil passing holes 20 communicated with the fabrication hole, oil is supplied to the surface of the wheel shaft through the oil passing holes for lubrication, the smooth and free rotation of the pulley is ensured, and the service life is ensured.
The pulley block mounting structure is reasonable in structural design, the middle of the wheel shaft is provided with the convex matching section, the mounting mode of interference fit with the matching hole in the lug plate is adopted, the pulley blocks are symmetrically mounted on two sides of the matching section, the wheel shaft effectively improves the positioning precision, the whole pulley block structure is guaranteed to have good stability, and the pulley block mounting structure cannot loosen after long-term use. Meanwhile, the pulley blocks are symmetrically arranged on two sides of the matching section, the structural symmetry is good, the balance is good in the hoisting operation process, and the whole stress of the pulley block is relatively balanced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a pulley block structure for hoist and mount which characterized in that: the wheel comprises a wheel cover and a wheel shaft on the wheel cover, wherein a lifting lug is arranged on the wheel shaft;
shaft holes are correspondingly formed in the two side plates of the wheel cover, and the two ends of the wheel shaft penetrate through the shaft holes and are fixed by the fixing assemblies;
the wheel shaft comprises a matching section in the middle and mounting sections symmetrically arranged at two ends of the matching section, the diameter of the matching section is larger than that of the mounting sections, and positioning surfaces are respectively formed at two ends of the matching section; the mounting sections are respectively provided with a pulley block;
the lug plate of the lifting lug is provided with a matching hole in interference fit with the matching section, the lower end of the lug plate extends out of the wheel cover, and the tail end of the lug plate is fixed with a shaft sleeve; the axial direction of the shaft sleeve is vertical to the axial direction of the wheel cover.
2. The pulley block structure for hoisting according to claim 1, wherein: the shaft hole is provided with a reinforcing sleeve matched with the wheel shaft; the reinforcing sleeve is provided with a shaft shoulder structure matched with the side plate, and the inner side of the reinforcing sleeve is provided with a positioning platform.
3. The pulley block structure for hoisting according to claim 1, wherein: the wheel cover further comprises an arc-shaped bottom plate, a connecting plate is arranged on the bottom plate, and the lug plates are fixed with the connecting plate through a connecting assembly on the connecting plate.
4. The pulley block structure for hoisting according to claim 3, wherein: the connecting assembly comprises a bolt, and the bolt sequentially penetrates through the connecting plate and the lug plate and is locked by a nut.
5. The pulley block structure for hoisting according to claim 1, wherein: the pulley block on each mounting section comprises at least two pulleys, and the pulleys are rotatably mounted on a wheel shaft through bearings.
6. The pulley block structure for hoisting according to claim 1, wherein: the tail end of the mounting section of the wheel shaft is provided with a fixing part, and the diameter of the fixing part is smaller than that of the mounting section; the joint of the mounting section and the fixing part forms a limiting table, and fixing holes are distributed in the surface of the limiting table.
7. The pulley block structure for hoisting according to claim 6, wherein: the end face of the fixed part is provided with a fabrication hole, and different positions on the mounting section are provided with oil passing holes communicated with the fabrication hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021913844.2U CN213356791U (en) | 2020-09-04 | 2020-09-04 | Pulley block structure for hoisting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021913844.2U CN213356791U (en) | 2020-09-04 | 2020-09-04 | Pulley block structure for hoisting |
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| Publication Number | Publication Date |
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| CN213356791U true CN213356791U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021913844.2U Active CN213356791U (en) | 2020-09-04 | 2020-09-04 | Pulley block structure for hoisting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353828A (en) * | 2021-07-13 | 2021-09-07 | 上海大屯能源股份有限公司江苏分公司 | Inclined roadway lifting guide cast steel rope pulley set |
-
2020
- 2020-09-04 CN CN202021913844.2U patent/CN213356791U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353828A (en) * | 2021-07-13 | 2021-09-07 | 上海大屯能源股份有限公司江苏分公司 | Inclined roadway lifting guide cast steel rope pulley set |
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