CN202011698U - Large-scale portal slewing bearing of full-circle swing crane - Google Patents
Large-scale portal slewing bearing of full-circle swing crane Download PDFInfo
- Publication number
- CN202011698U CN202011698U CN2011200768963U CN201120076896U CN202011698U CN 202011698 U CN202011698 U CN 202011698U CN 2011200768963 U CN2011200768963 U CN 2011200768963U CN 201120076896 U CN201120076896 U CN 201120076896U CN 202011698 U CN202011698 U CN 202011698U
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- China
- Prior art keywords
- race member
- raceway
- piece
- slewing bearing
- scale
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a large-scale portal slewing bearing of a full-circle swing crane, which comprises an upper raceway piece and a lower raceway piece. The upper raceway piece is connected with an annular box girder structure on the lower portion of a rotary platform, the lower raceway piece is connected with an annular box girder structure on a lower barrel body, a pressing roller assembly is arranged between the upper raceway piece and the lower raceway piece, and the upper raceway piece and the lower raceway piece are both connected with a hook wheel assembly. The large-scale portal slewing bearing of the full-circle swing crane is simple in structure, low in manufacture and maintaining cost, and convenient to transport and install. Pinch rollers and rocker wheels distributed along circumferential direction between a raceway on the lower portion of the rotary platform of the crane and a raceway on the upper portion of the barrel body are respectively used for bearing vertically downward stress and upwards pulling force, thereby enabling the whole machine to have the large-scale slewing bearing with antidumping capability and having good safety.
Description
Technical field
The utility model relates to a kind of pivoting support of large-scale seat type full circle swinging hoisting crane, belongs to machinery manufacturing technology field.
Background technology
The demand of domestic large-scale seat type full circle swinging hoisting crane is more and more at present, and the diameter of the maximum pivoting support of producing is about about 4.5 meters at present, can't satisfy the application of large-scale high pedestal jib crane.
Summary of the invention
The purpose of this utility model provides a kind of pivoting support of large-scale seat type full circle swinging hoisting crane.
In order to realize above purpose, the utility model provides a kind of pivoting support of large-scale seat type full circle swinging hoisting crane, comprise race member and following race member, last race member connects the donought girder construction of turn table bottom, following race member connects the donought girder construction of bottom cylindrical shell, be provided with the pressing roller assembly between last race member and the following race member, last race member all is connected with the hook wheel assembly with following race member.
Further, the described race member of going up is connected by bolt with flange with following race member.
Be provided with raceway backing plate spare between described pressing roller assembly and the following race member.
The utility model is simple in structure, transportation, easy for installation, manufacturing, maintenance cost are low, by using the pull out force that bears pressure vertically downward respectively and make progress along pinch roller that circumferentially distributes and cover hook wheel between the raceway on crane rotation platform bottom raceway and cylindrical shell top, thereby make complete machine possess the resistance to capsizing large-size pivoting support, safety is good.
Description of drawings
Fig. 1 is the pivoting support structural representation of large-scale seat type full circle swinging hoisting crane;
Fig. 2 is large-scale seat type full circle swinging crane structure scheme drawing.
The specific embodiment
Specify the utility model below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, be the pivoting support structural representation of large-scale seat type full circle swinging hoisting crane, the pivoting support of described large-scale seat type full circle swinging hoisting crane is made up of last race member 1, pressing roller assembly 2, hook wheel assembly 3, following race member 4 and raceway backing plate spare 5.As shown in Figure 2, be large-scale seat type full circle swinging crane structure scheme drawing, last race member 1 connects the donought girder construction of turn table 6 bottoms, following race member 4 connects the donought girder construction of bottom cylindrical shell 8, be provided with pressing roller assembly 2 between last race member 1 and the following race member 4, last race member 1 all is connected with hook wheel assembly 3 with following race member 4.For the ease of transportation, the described race member 1 of going up adopts middle subdivision box type construction with following race member 4, connects by bolt with flange.Be provided with raceway backing plate spare 5 between described pressing roller assembly 2 and the following race member 4.Have 144 cover pressing rollers in the pressing roller assembly 2, per 4 cover pressing rollers are combined into one group of nip drum wheels by turning rolls.Have 180 cover hooks wheels in the hook wheel assembly, the hook wheel is respectively arranged 40 groups inside and outside in 104 ° of angles of fore-and-aft direction (the jib direction is preceding), respectively arranges 5 groups inside and outside in 13 ° of angles of left and right directions, and angle is 2.6 ° between every group of hook wheel.Hook wheel and gap, following race member 4 bottom surface be by the eccentric shaft adjustment, and clearance control is between 0.5-2mm, and with the fixing turn table of fixing screw.
The utility model is located on the bottom cylindrical shell 8 by pressing roller and hook wheel, bears the weight (comprising lift heavy) and the unbalanced capsizing moment of turn table 6, and biography and bottom cylindrical shell 8.The center of turn of turn table 6 is a center bearing pilot bearing 9, and center bearing pilot bearing 9 is a spherangular roller bearing, and this bearing bears horizontal load, and turn table 6 can be turned round freely.
Claims (3)
1. the pivoting support of one kind large-scale seat type full circle swinging hoisting crane, comprise race member (1) and following race member (4), last race member (1) connects the donought girder construction of turn table (6) bottom, following race member (4) connects the donought girder construction of bottom cylindrical shell (8), be provided with pressing roller assembly (2) between last race member (1) and the following race member (4), last race member (1) all is connected with hook wheel assembly (3) with following race member (4).
2. the pivoting support of large-scale seat type full circle swinging hoisting crane as claimed in claim 1 is characterized in that, the described race member (1) of going up is connected by bolt with flange with following race member (4).
3. the pivoting support of large-scale seat type full circle swinging hoisting crane as claimed in claim 1 is characterized in that, is provided with raceway backing plate spare (5) between described pressing roller assembly (2) and the following race member (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200768963U CN202011698U (en) | 2011-03-22 | 2011-03-22 | Large-scale portal slewing bearing of full-circle swing crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200768963U CN202011698U (en) | 2011-03-22 | 2011-03-22 | Large-scale portal slewing bearing of full-circle swing crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202011698U true CN202011698U (en) | 2011-10-19 |
Family
ID=44782311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200768963U Expired - Lifetime CN202011698U (en) | 2011-03-22 | 2011-03-22 | Large-scale portal slewing bearing of full-circle swing crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202011698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056622A (en) * | 2013-01-23 | 2013-04-24 | 象王重工股份有限公司 | Method for machining upper bearing ring raceways of gantry of gantry crane |
-
2011
- 2011-03-22 CN CN2011200768963U patent/CN202011698U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056622A (en) * | 2013-01-23 | 2013-04-24 | 象王重工股份有限公司 | Method for machining upper bearing ring raceways of gantry of gantry crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |