CN202440250U - Support guiding device and crane suspension arm - Google Patents
Support guiding device and crane suspension arm Download PDFInfo
- Publication number
- CN202440250U CN202440250U CN2012200470713U CN201220047071U CN202440250U CN 202440250 U CN202440250 U CN 202440250U CN 2012200470713 U CN2012200470713 U CN 2012200470713U CN 201220047071 U CN201220047071 U CN 201220047071U CN 202440250 U CN202440250 U CN 202440250U
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- China
- Prior art keywords
- slide block
- support
- hold down
- adapter shaft
- down groove
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Abstract
The utility model provides a support guiding device and a crane suspension arm. The support guiding device comprises a sliding block, a support plate, a connecting shaft, a thrust knuckle bearing, a fixed sleeve, a fixed baffle and a support base, wherein the sliding block is arranged on the upper end face of the support plate, an inner ring fixing groove is arranged on the lower end face of the support plate, and the inner ring of the thrust knuckle bearing is embedded in the inner ring fixing groove; an outer ring fixing groove is arranged at the upper end part of the support base, the outer ring of the thrust knuckle bearing is embedded in the outer ring fixing groove, and a step containing groove is arranged at the lower end part of the support base and is communicated with the outer ring fixing groove; the upper end part of the connecting shaft is connected with the lower end part of the support plate, and the connecting shaft penetrates out of a shaft hole of the thrust knuckle bearing; and the fixed sleeve is sleeved on the connecting shaft, the fixed baffle is fixed on the lower end face of the connecting shaft, and the upper end face of the fixed sleeve props against the outer cambered surface of the inner ring of the thrust knuckle bearing. According to the utility model, the support guiding surface of the slide block can be ensured to be in full contact with a cylinder body of the suspension arm, the slide block is prevented from generating deflection friction, and thus the service life of the slide block is prolonged.
Description
Technical field
The utility model relates to the hoisting crane technical field, relates in particular to a kind of support oriented device and crane arm.
Background technology
Telehoist comprises that at least two save the arm of suit successively, and arm is the tube structure that steel plate is welded into, and an end of outermost arm is fixed on the rotating platform of crane, stretches out or withdraws through Driven by Hydraulic Cylinder in-to-in arm.Support slipper is installed, the effect that is used to reduce the friction force between the arm and has guide-localization between arm.
As depicted in figs. 1 and 2; With two joint arms is example; Crane arm comprises first segment arm 10, second joint arm 20 and the support slipper 30, and the rear portion of first segment arm 10 (fixed arm) is fixed on the rotating platform of crane, and the second joint arm 20 (telescopic boom) is socketed in the first segment arm 10.
The dull and stereotyped block structure that support slipper 30 is processed for nylon material; Support slipper 30 is installed between the arm through bolt; Wherein, Two support slippers 30 are installed on the first segment arm 10 and near the position of preceding bottom, the outer wall of the support guide face of these two support slippers 30 and the second joint arm 20 contacts; Two other support slipper 30 is installed on the second joint arm 20 and near the position of upper back, the support guide face of these two support slippers 30 contacts with the inwall of first segment arm 10, through bolt support slipper 30 is captiveed joint with arm.For guaranteeing that support slipper 30 contacts with the guiding surface of arm fully, need between the inwall of support slipper 30 and arm, install pad 40 additional, through the thickness of bearing cap shim 40, the height of adjustment support slipper 30.When the second joint arm 20 stretched out, the second joint arm 20 slided along the support guide face of support slipper 30, and support slipper 30 can reduce the friction force between the first segment arm 10 and the second joint arm 20, and had the effect of guide-localization.
In the research process that carries out the utility model, the contriver finds to adopt above-mentioned existing support slipper to have following technological deficiency:
Owing to have the gap between arm and the support slipper 30; When the second joint arm 20 stretches out; Under the effect of self gravitation or lifted weight; The rearward end of the second joint arm 20 is upturned (as shown in Figure 3), and owing to support slipper 30 is fixed, thereby support slipper 30 contacts inhomogeneous with the guiding surface of arm.The eccentric wear phenomenon appears in support slipper 30 local pressures, makes support slipper 30 damage easily.
In addition, because support slipper 30 is through being bolted on the first segment arm 10, when the height of adjustment support slipper 30; Need the second joint arm 20 be propped, support slipper 30 pulled down the thickness of bearing cap shim 40; Could accomplish the height adjustment to support slipper 30, adjustment is inconvenient.
The utility model content
The utility model provides a kind of support oriented device and crane arm, in order to the technological deficiency that solves support slipper discontinuity of the prior art, damages easily, stressed homogeneity and the service life that can improve support oriented device.
The utility model provides a kind of support oriented device, comprises slide block, stay bearing plate, adapter shaft, thrust articulated bearing, fixed cover, fixed dam and supporting seat;
Said slide block is installed on the upper surface of said stay bearing plate, and the upper surface of slide block formation support guide face, offers the inner ring hold down groove on the lower surface of said stay bearing plate, and the inner ring of said thrust articulated bearing is embedded in said inner ring hold down groove;
The upper end of said supporting seat has the outer ring hold down groove, and the outer ring of said thrust articulated bearing is embedded in the hold down groove of said outer ring, and the bottom of said supporting seat has the ladder holding tank that connects with said outer ring hold down groove;
Said adapter shaft passes from the axis hole of said thrust articulated bearing and the upper end is connected with the bottom of said stay bearing plate; Said fixed cover is socketed on the said adapter shaft, and said fixed dam is fixed on the lower surface of said adapter shaft, and makes the extrados butt of inner ring of upper surface and the said thrust articulated bearing of said fixed cover.
Preferably, has the cylindrical shell bonded assembly outside thread that is used for crane arm on the outline of said supporting seat.
Preferably, have the slide block hold down groove on the upper end of said stay bearing plate, said slide block is embedded in said slide block hold down groove.
Preferably, the bottom of said stay bearing plate has the ladder connecting bore that connects with said slide block hold down groove;
The upper end of said adapter shaft has boss, and the oad of said boss is greater than the oad of the main body of said adapter shaft;
The main body of said adapter shaft and boss are embedded in said ladder connecting bore.
Preferably, said stay bearing plate and said adapter shaft are structure as a whole.
The utility model also provides a kind of crane arm, comprises the support oriented device that the utility model provides, and said support oriented device is installed on the cylindrical shell of said crane arm.
Support oriented device that the utility model provides and crane arm; Because slide block is installed in through stay bearing plate and adapter shaft on the inner ring of thrust articulated bearing, the outer ring of thrust articulated bearing can be connected with arm through supporting seat, and slide block can turn an angle around the central axis of supporting seat; Thereby in practical application; When the arm that stretches out produced downward inclination angle, slide block can rotate along with arm, with the support guide face that guarantees slide block all the time with the cylindrical shell total contact of arm; Avoid slide block to produce and rub partially, improve the service life of slide block.
Description of drawings
Fig. 1 is the structural representation of the support slipper of existing arm;
Fig. 2 is along the cutaway view of A-A line among Fig. 1;
Fig. 3 is the scheme drawing of arm after stretching out;
The scheme drawing of the support oriented device that Fig. 4 provides for the utility model first embodiment;
Fig. 5 is the scheme drawing of the stay bearing plate among Fig. 4;
Fig. 6 is the scheme drawing of the supporting seat among Fig. 4;
Fig. 7 is the scheme drawing after the support oriented device swing among Fig. 4.
The specific embodiment
With reference to figure 4-6, the scheme drawing of the support oriented device that Fig. 4 provides for the utility model first embodiment; Fig. 5 is the scheme drawing of the stay bearing plate among Fig. 4; Fig. 6 is the scheme drawing of the supporting seat among Fig. 4.
In first embodiment of the utility model, support oriented device comprises slide block 1, stay bearing plate 2, adapter shaft 3, thrust articulated bearing 4, fixed cover 5, fixed dam 6 and supporting seat 7.
The upper end of supporting seat 7 has outer ring hold down groove 71, and the outer ring 42 of thrust articulated bearing 4 is embedded in outer ring hold down groove 71, and the bottom of supporting seat 7 has the ladder holding tank 72 that connects with outer ring hold down groove 71.
Link together through fixed dam 6 and the inner ring 41 of fixed cover 5 slide block 1, stay bearing plate 2 and thrust articulated bearing 4.Supporting seat 7 is fixing with the outer ring 42 of thrust articulated bearing 4 through outer ring hold down groove 71.The inner ring 41 that slide block 1 can drive thrust articulated bearing 4 rotates, and the outer ring 42 of thrust articulated bearing 4 is fixed on the supporting seat 7, thereby slide block 1 can turn an angle around any direction of supporting seat 7 central axis (as shown in Figure 7).
In the practical application, supporting seat 7 is installed on the cylindrical shell of crane arm.As shown in Figure 1; Replace the support slipper 30 that uses in the prior art; Can two support oriented devices that present embodiment provides be installed on the inwall near first segment arm 10 preceding bottoms; Make the support guide face of slide block 1 and the outer wall of the second joint arm 20 contacts, two other support oriented device is installed near second saves on the outer wall of upper back of arm 20, make the support guide face of slide block 1 contact with the inwall of first segment arm 10.
The support oriented device that present embodiment provides; When the second joint arm 20 that stretches out produces downward inclination angle; Slide block 1 can rotate along with the second joint arm 20; With the support guide face that guarantees slide block 1 all the time with the cylindrical shell total contact of first segment arm 10 with the second joint arm 20, avoid slide block 1 to produce and rub partially, the service life of raising slide block 1.
On the basis of the technical scheme of the support oriented device that first embodiment provides; Can also do further improvement; Particularly, as shown in Figure 6, offer the cylindrical shell bonded assembly outside thread 73 that is used for crane arm at the outline of supporting seat 7; Can supporting seat 7 be threaded with arm, and can be through nut 8 locking supporting seats 7.When needs are adjusted the height of slide block 1, only need unclamp nut 8, inwardly or outwards adjust supporting seat 7, can realize the adjustment of slide block 1 height, easy to adjust.
Further, have slide block hold down groove 21 on the upper end of stay bearing plate 2, slide block 1 is embedded in slide block hold down groove 21, make that the dismounting of installation of slide block 1 is more convenient.
In addition, the bottom of stay bearing plate 2 offers the ladder connecting bore 22 that connects with slide block hold down groove 21;
The upper end of adapter shaft 3 has boss, and the oad of boss is greater than the oad of the main body of adapter shaft 3; The main body of adapter shaft 3 and boss are embedded in ladder connecting bore 22, are convenient to install and connect reliably.
Need to prove that in the above-described embodiments, stay bearing plate 2 also can be made of one structure with adapter shaft 3, can improve Joint strenght.
The utility model also provides a kind of crane arm; Comprise the support oriented device that the utility model the foregoing description provides, support oriented device is installed on the cylindrical shell of said crane arm, concrete installation site; As shown in Figure 1; Can the supporting seat 7 of two support oriented devices be installed on the inwall near the preceding bottom of first segment arm 10, the outer wall of the support guide face of slide block 1 and the second joint arm 20 contacts, and has the effect of support guide.The supporting seat 7 of two other support oriented device is installed on the inwall near the upper back of the second joint arm 20, and the support guide face of slide block 1 contacts with the inwall of first segment arm 10, has the effect of support guide.In addition, the concrete installation site of support oriented device and quantity also can be adjusted according to the actual loading situation.
The crane arm that present embodiment provides; When the second joint arm 20 that stretches out produces downward inclination angle; The slide block 1 of support oriented device can rotate thereupon; With the support guide face that guarantees slide block 1 all the time with the cylindrical shell total contact of first segment arm 10 with the second joint arm 20, avoid slide block 1 to produce and rub partially, the service life of raising slide block 1.
What should explain at last is: above embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (6)
1. a support oriented device is characterized in that, comprises slide block, stay bearing plate, adapter shaft, thrust articulated bearing, fixed cover, fixed dam and supporting seat;
Said slide block is installed on the upper surface of said stay bearing plate, and the upper surface of slide block formation support guide face, offers the inner ring hold down groove on the lower surface of said stay bearing plate, and the inner ring of said thrust articulated bearing is embedded in said inner ring hold down groove;
The upper end of said supporting seat has the outer ring hold down groove, and the outer ring of said thrust articulated bearing is embedded in the hold down groove of said outer ring, and the bottom of said supporting seat has the ladder holding tank that connects with said outer ring hold down groove;
Said adapter shaft passes from the axis hole of said thrust articulated bearing and the upper end is connected with the bottom of said stay bearing plate; Said fixed cover is socketed on the said adapter shaft, and said fixed dam is fixed on the lower surface of said adapter shaft, and makes the extrados butt of inner ring of upper surface and the said thrust articulated bearing of said fixed cover.
2. support oriented device according to claim 1 is characterized in that, has the cylindrical shell bonded assembly outside thread that is used for crane arm on the outline of said supporting seat.
3. support oriented device according to claim 1 and 2 is characterized in that, has the slide block hold down groove on the upper end of said stay bearing plate, and said slide block is embedded in said slide block hold down groove.
4. support oriented device according to claim 3 is characterized in that, the bottom of said stay bearing plate has the ladder connecting bore that connects with said slide block hold down groove;
The upper end of said adapter shaft has boss, and the oad of said boss is greater than the oad of the main body of said adapter shaft;
The main body of said adapter shaft and boss are embedded in said ladder connecting bore.
5. according to claim 1 or 2 said support oriented devices, it is characterized in that said stay bearing plate and said adapter shaft are structure as a whole.
6. a crane arm is characterized in that, comprises each described support oriented device of claim 1-5, and said support oriented device is installed on the cylindrical shell of said crane arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200470713U CN202440250U (en) | 2012-02-14 | 2012-02-14 | Support guiding device and crane suspension arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200470713U CN202440250U (en) | 2012-02-14 | 2012-02-14 | Support guiding device and crane suspension arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202440250U true CN202440250U (en) | 2012-09-19 |
Family
ID=46821704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200470713U Expired - Lifetime CN202440250U (en) | 2012-02-14 | 2012-02-14 | Support guiding device and crane suspension arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202440250U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663198A (en) * | 2013-11-25 | 2014-03-26 | 无锡起岸重工机械有限公司 | Suspension arm supporting structure for marine crane |
| CN106698243A (en) * | 2017-01-14 | 2017-05-24 | 常州大学 | Lifting mechanism |
| CN110980561A (en) * | 2019-12-16 | 2020-04-10 | 江苏航运职业技术学院 | Harbour crane jib loading boom slewer |
-
2012
- 2012-02-14 CN CN2012200470713U patent/CN202440250U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663198A (en) * | 2013-11-25 | 2014-03-26 | 无锡起岸重工机械有限公司 | Suspension arm supporting structure for marine crane |
| CN106698243A (en) * | 2017-01-14 | 2017-05-24 | 常州大学 | Lifting mechanism |
| CN106698243B (en) * | 2017-01-14 | 2019-03-22 | 常州大学 | Elevating mechanism |
| CN110980561A (en) * | 2019-12-16 | 2020-04-10 | 江苏航运职业技术学院 | Harbour crane jib loading boom slewer |
| CN110980561B (en) * | 2019-12-16 | 2020-11-03 | 江苏航运职业技术学院 | Harbour crane jib loading boom slewer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee after: CRRC QIQIHAR VEHICLE CO., LTD. Address before: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee before: Qiqihar Railway Rolling Stock Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |