CN202322128U - Slewing mechanism - Google Patents
Slewing mechanism Download PDFInfo
- Publication number
- CN202322128U CN202322128U CN2011204926311U CN201120492631U CN202322128U CN 202322128 U CN202322128 U CN 202322128U CN 2011204926311 U CN2011204926311 U CN 2011204926311U CN 201120492631 U CN201120492631 U CN 201120492631U CN 202322128 U CN202322128 U CN 202322128U
- Authority
- CN
- China
- Prior art keywords
- inner ring
- pivoting support
- outer ring
- upper bracket
- undersetting
- 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 - Fee Related
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Abstract
The utility model relates to a slewing mechanism, comprising an upper supporting seat, a lower supporting seat and a slewing support, wherein the slewing support is positioned between the upper supporting seat and the lower supporting seat, and the rotating axis of the slewing support is along the vertical direction, comprise an inner ring and an outer ring rotatably matched with the inner ring; the inner ring is fixedly connected with the upper supporting seat; the outer ring is fixedly connected with the lower supporting seat; and the inner ring and the upper supporting seat are aligned to a centering structure of a slewing center and centering structures of the outer ring and the lower supporting seat by centering structures. The slewing mechanism has the advantages that the structure is simple, the installation is also very convenient, the workload is low, the efficiency is high, the cost is low, and the problem that the slewing centers of the upper supporting seat, the slewing support and the lower supporting seat in the slewing mechanism of a tower crane in the prior art are not easily aligned along the vertical direction are well solved.
Description
Technical field
The utility model relates to a kind of vehicle for construction, particularly a kind of swing type mechanism.
Background technology
Tower crane is used swing type mechanism in the prior art, comprises upper bracket, undersetting and the pivoting support between upper and lower bearing, pivoting support comprise inner ring and with the outer ring of inner ring normal-running fit; Wherein inner ring and upper bracket are connected, and outer ring and undersetting are connected, in the prior art; Because the Internal and external cycle upper and lower end face of pivoting support is the plane, be the plane with the end face of the corresponding upper and lower bearing of pivoting support Internal and external cycle contact matching, so the unusual difficulty of the center of gyration that vertically aligns upper bracket, pivoting support and undersetting; Adding the each several part massiveness has more increased the difficulty that the center aligns, if center of gyration does not align, bolt of rear end plate all can't screw in the corresponding bolt hole; Even using welding fixes each several part by force; If but center of gyration is not to be on the vertical straight line, stability reduces during operation, even can cause danger; In the real work; Usually need adjust times without number in the hope of the center of gyration with each several part and align, work capacity is very big, and efficient is very low.
The utility model content
The purpose of the utility model is to provide a kind of swing type mechanism, with the difficult problem that vertically aligns of the center of gyration of upper bracket, pivoting support and support down in the swing type mechanism in the solution prior art.
In order to address the above problem; A kind of swing type mechanism of the utility model; This swing type mechanism comprises upper bracket, undersetting and the pivot center pivoting support vertically between said upper and lower bearing; This pivoting support comprise inner ring and with the outer ring of said inner ring normal-running fit; Wherein said inner ring and said upper bracket are connected; Said outer ring and said undersetting are connected; Said inner ring and said upper bracket align center of gyration through adjective-centre structure, and first annular groove that this adjective-centre structure overlaps for the line of centers that on one of them face in said inner ring upper surface and the said upper bracket lower surface, is provided with and the pivot center of said pivoting support and on another face, be provided with said first annular groove and rotate first annular projection that the location of pegging graft cooperates perhaps is setting and the said pivoting support endoporus rotation annular boss that grafting cooperates and pivot center overlaps with said upper bracket rotation axis on the lower surface of said upper bracket; Said outer ring and the adjective-centre structure of said undersetting be included in be provided with on second annular groove that the line of centers that is provided with on one of them face in lower surface, said outer ring and the said undersetting lower surface and the pivot center of said pivoting support overlap and another face rotate second annular projection that the location of pegging graft cooperates with said second annular groove.
Described first annular groove is located on the upper surface of said pivoting support inner ring, and described first annular projection is located on the said lower surface of upward supporting and the line of centers of this annular projection overlaps with the said pivot center that supports of going up; Described second annular groove is located on the said upper surface of supporting down, and described first annular projection is located on the lower surface, said pivoting support outer ring and the line of centers of this annular projection and the said central lines that supports down.
Along the circumferential direction be evenly distributed to few two bolt penetration hole of in axial direction extending on the said inner ring of said pivoting support and the said outer ring; Said inner ring is realized fixing through bolt of rear end plate in the bolt penetration hole and said upper bracket, said outer ring is realized fixing through the bolt of rear end plate and the said undersetting that revolve in the bolt penetration hole.
The outer peripheral face of said outer ring is provided with and is used for and the cog gear teeth of engagement fit of propulsion source output shaft.
The utility model cooperates with the grafting of annular recess with pivoting support endoporus or annular projection through annular boss in upper bracket, undersetting and the pivoting support; Be easy to realize the aligning of center of gyration of upper bracket, undersetting and pivoting support; Simple in structure; Install very convenient again; Work capacity is little, efficient is expensive low, and the fine center of gyration that has solved in the prior art upper bracket, pivoting support in the swing type mechanism of tower crane and supported down is difficult for the problem that vertically aligns.
Description of drawings
Fig. 1 is the structural representation of swing type mechanism among the utility model embodiment;
Fig. 2 is the structural representation at A place among Fig. 1;
Fig. 3 is the structural representation of tower crane among the utility model embodiment.
The specific embodimentBelow in conjunction with accompanying drawing the utility model embodiment is done detailed description:
A kind of embodiment of swing type mechanism,
Embodiment 1
Shown in Fig. 1 ~ 2; This swing type mechanism comprises upper bracket 1, undersetting 2 and at upper and lower bearing 1, line of centers pivoting support vertically between 2; This pivoting support comprise inner ring 4 and with the outer ring 3 of inner ring 4 normal-running fiies; Wherein inner ring 4 is connected with upper bracket 1; Outer ring 3 is connected with undersetting 2, and said inner ring 4 and said upper bracket 1 align center of gyration through adjective-centre structure, and this adjective-centre structure be on the lower surface of said upper bracket 1, to be provided with and the said pivoting support endoporus 5 rotation annular boss 7 that grafting cooperates and pivot center overlaps with said upper bracket 1 rotation axis; The adjective-centre structure of said outer ring and said undersetting is included in second annular groove 6 that is provided with on the upper surface of undersetting 2; And outer ring 3 and undersetting 2 upper surface heavy keying fit the lower surface on be provided with and second annular groove 6, second annular projection 8 that the location cooperates of pegging graft; The line of centers of this second annular groove 6 overlaps with the pivot center of said pivoting support, the central lines of the line of centers of this convexity 8 and undersetting 2; Along the circumferential direction be evenly distributed to few two bolt penetration hole 15,16 of in axial direction extending on the said inner ring 4 of pivoting support and the said outer ring 3; Inner ring 4 is realized fixing through bolt of rear end plate in the bolt penetration hole 16 and upper bracket 1, outer ring 3 is realized fixing through bolt of rear end plate in the bolt penetration hole 16 and undersetting 2; The outer peripheral face of outer ring 3 is provided with and is used for and the cog gear teeth 9 of engagement fit of propulsion source output shaft, between the pivoting support Internal and external cycle, is provided with exclusion seal ring 17.
During assembling; Only need annular boss with upper bracket be plugged in the endoporus of pivoting support and the annular projection of outer ring inserted aligning of the center of gyration that to realize upper bracket, undersetting and pivoting support in the annular recess of undersetting; Simple in structure, to install very conveniently again, work capacity is little; Efficient is expensive low, and the fine center of gyration that has solved in the prior art upper bracket, pivoting support in the swing type mechanism of tower crane and supported down is difficult for the problem that vertically aligns.
The adjective-centre structure of different with embodiment 1 is said inner ring and said upper bracket can also on first annular groove that is provided with on the upper surface of inner ring and lower surface, be provided with in upper bracket and inner ring upper surface heavy keying fit with first annular groove, first annular projection that the location cooperates of pegging graft; The line of centers of first annular groove overlaps with the pivot center of said pivoting support, and the line of centers of first annular projection overlaps with the pivot center of upper bracket.
Embodiment 3
Different with embodiment 2 is, the adjective-centre structure of said inner ring and said upper bracket can also for first annular groove that is provided with on the upper bracket lower surface and said inner ring and upper bracket lower surface heavy keying fit the upper surface on be provided with first annular groove, first annular projection that the location cooperates of pegging graft.
Embodiment 4
All different with embodiment 1 and embodiment 2 is; On the lower surface, outer ring, be provided with the line of centers of second annular groove and this second annular groove and the central lines of said pivoting support, on the upper surface of undersetting and lower surface, outer ring heavy keying fit, be provided with and second annular groove, second annular projection that the location cooperates of pegging graft.
Embodiment 5
Different with embodiment 2 is; On the upper bracket lower surface, be provided with the line of centers of first annular groove and this first annular groove and the central lines of said pivoting support, said inner ring and upper bracket lower surface heavy keying fit the upper surface on be provided with and first annular groove, first annular projection that the location cooperates of pegging graft; On the lower surface, outer ring, be provided with the line of centers of second annular groove and this second annular groove and the central lines of said pivoting support, on the upper surface of undersetting and lower surface, outer ring heavy keying fit, be provided with and second annular groove, second annular projection that the location cooperates of pegging graft.
The utility model can be applicable to tower crane; Hoisting crane and other have in turning gear or the machine; When in tower crane, using; As shown in Figure 3, tower crane generally comprises base 10, be installed in body of the tower 11 on 10 bases, be located at arm 12 and equilibrium arm 13 on this body of the tower 11, and swing type mechanism 14 is located on the body of the tower of equilibrium arm 13 belows.
Claims (4)
1. swing type mechanism; This swing type mechanism comprises upper bracket, undersetting and the pivot center pivoting support vertically between said upper and lower bearing; This pivoting support comprise inner ring and with the outer ring of said inner ring normal-running fit; Wherein said inner ring and said upper bracket are connected; Said outer ring and said undersetting are connected; It is characterized in that: said inner ring and said upper bracket align center of gyration through adjective-centre structure; First annular groove that this adjective-centre structure overlaps for the line of centers that on one of them face in said inner ring upper surface and the said upper bracket lower surface, is provided with and the pivot center of said pivoting support and on another face, be provided with said first annular groove and rotate first annular projection that the location of pegging graft cooperates perhaps is setting and the said pivoting support endoporus rotation annular boss that grafting cooperates and pivot center overlaps with said upper bracket rotation axis on the lower surface of said upper bracket; Said outer ring and the adjective-centre structure of said undersetting be included in be provided with on second annular groove that the line of centers that is provided with on one of them face in lower surface, said outer ring and the said undersetting lower surface and the pivot center of said pivoting support overlap and another face rotate second annular projection that the location of pegging graft cooperates with said second annular groove.
2. a kind of swing type mechanism according to claim 1; It is characterized in that: described first annular groove is located on the upper surface of said pivoting support inner ring, and described first annular projection is located on the said lower surface of upward supporting and the line of centers of this annular projection overlaps with the said pivot center that supports of going up; Described second annular groove is located on the said upper surface of supporting down, and described first annular projection is located on the lower surface, said pivoting support outer ring and the line of centers of this annular projection and the said central lines that supports down.
3. a kind of swing type mechanism according to claim 1 and 2; It is characterized in that: along the circumferential direction be evenly distributed to few two bolt penetration hole of in axial direction extending on the said inner ring of said pivoting support and the said outer ring; Said inner ring is realized fixing through bolt of rear end plate in the bolt penetration hole and said upper bracket, said outer ring is realized fixing through the bolt of rear end plate and the said undersetting that revolve in the bolt penetration hole.
4. a kind of swing type mechanism according to claim 3 is characterized in that: the outer peripheral face of said outer ring is provided with and is used for and the cog gear teeth of engagement fit of propulsion source output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204926311U CN202322128U (en) | 2011-12-01 | 2011-12-01 | Slewing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204926311U CN202322128U (en) | 2011-12-01 | 2011-12-01 | Slewing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322128U true CN202322128U (en) | 2012-07-11 |
Family
ID=46434118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204926311U Expired - Fee Related CN202322128U (en) | 2011-12-01 | 2011-12-01 | Slewing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202322128U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756974A (en) * | 2012-07-24 | 2012-10-31 | 太原重工股份有限公司 | Rotation vehicle of crane |
| CN103496642A (en) * | 2013-10-23 | 2014-01-08 | 徐州重型机械有限公司 | All-terrain carne and rotary table support thereof |
| CN110616765A (en) * | 2019-09-24 | 2019-12-27 | 上海三一重机股份有限公司 | Slewing bearing mounting structure and excavator |
-
2011
- 2011-12-01 CN CN2011204926311U patent/CN202322128U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756974A (en) * | 2012-07-24 | 2012-10-31 | 太原重工股份有限公司 | Rotation vehicle of crane |
| CN103496642A (en) * | 2013-10-23 | 2014-01-08 | 徐州重型机械有限公司 | All-terrain carne and rotary table support thereof |
| CN103496642B (en) * | 2013-10-23 | 2015-04-22 | 徐州重型机械有限公司 | All-terrain carne and rotary table support thereof |
| CN110616765A (en) * | 2019-09-24 | 2019-12-27 | 上海三一重机股份有限公司 | Slewing bearing mounting structure and excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151201 |
|
| EXPY | Termination of patent right or utility model |