CN201777804U - Disc with adjustable support legs - Google Patents
Disc with adjustable support legs Download PDFInfo
- Publication number
- CN201777804U CN201777804U CN 201020513013 CN201020513013U CN201777804U CN 201777804 U CN201777804 U CN 201777804U CN 201020513013 CN201020513013 CN 201020513013 CN 201020513013 U CN201020513013 U CN 201020513013U CN 201777804 U CN201777804 U CN 201777804U
- Authority
- CN
- China
- Prior art keywords
- end cover
- base
- adjustable support
- support leg
- rubber block
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a disc with adjustable support legs, which comprises a base and an upper end cover, wherein a ball joint seat is arranged at the upper end of the upper end cover; the lower end of the upper end cover and the upper end of the base are sleeved; and a radial return spring is arranged between the upper end cover and the base. The disc with adjustable support legs has the advantage of simple structure, unbalanced loading borne by an oil cylinder with vertical supporting legs during working can be reduced through self-adapting adjustment, and the service life of the oil cylinder with vertical supporting legs is prolonged.
Description
Technical field
The utility model relates to construction machinery and equipment, relates in particular to the adjustable support leg dish that is used for the construction machinery and equipment supporting leg.
Background technology
In the process that large-tonnage lifting construction machinery and equipment uses, in order to guarantee the stressed of the vertical oil cylinder of supporting leg, reduce the side force that is subjected to when vertical oil cylinder is worked as far as possible, existing vertical oil cylinder mostly is by ball pivot and is connected with a rigid legs dish.Though this structure can be improved the stressing conditions of vertical oil cylinder, but, rigid legs dish and ground-surface friction force are bigger, can not move voluntarily, after if ground injustice or supporting leg deform, when vertical oil cylinder stretches out, ball pivot seat on the rigid legs dish has the trend that vertical oil cylinder is moved to ball pivot bulb center, cause vertical oil cylinder piston bar to be subjected to moment of flexure easily, make the piston rod unbalance loading, therefore, the rigid legs dish can not effectively reduce the side force between vertical oil cylinder piston bar and the cylinder barrel, makes shorten the service life of vertical oil cylinder.In addition, existing rigid legs is checked and regulated body and is used metal parts to make, connect, and therefore is struck by lightning easily when thunderstorm weather is worked, and has potential safety hazard.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, the adjustable support leg dish that can regulate reduce the vertical oil cylinder of supporting leg when the work unbalance loading of bearing, the vertical oil cylinder of prolongation service life by self adaptation is provided.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of adjustable support leg dish comprises base and upper end cover, and described upper end cover upper end is provided with the ball pivot seat, and described upper end cover is installed in the base upper end, and is provided with radially pull back spring between upper end cover and base.
Be provided with insulating collar between described radially pull back spring and the upper end cover.
Described upper end cover is placed in outside the base, and is provided with arc in the upper end cover lower end, prolongs on the described base to be circumferentially with the clamping platform, and the arc inboard is arranged in clamping platform below.
Described base top is provided with counterbore in the center, and in counterbore, be equiped with rubber block, described rubber block lower end is provided with counterbore shape concave station, the rubber block upper end is provided with the cross-hole that communicates with counterbore shape concave station, and described upper end cover lower end is equiped with the center cross that can place in described cross-hole and the counterbore shape concave station.
Described rubber block along circumferentially offering annular groove, is provided with the axial limiting snap ring that embeds in the annular groove in the outside between described base and the rubber block.
Described rubber block offers draw-in groove vertically in the outside, described base is provided with the circumferential positive stop lug boss that cooperates with draw-in groove in the counterbore inwall.
Be provided with nylon pad between described upper end cover lower surface and the base upper surface.
Described radially pull back spring is the ripple spring.
Compared with prior art, advantage of the present utility model is:
Adjustable support leg dish of the present utility model comprises base and upper end cover, the empty cover of upper end cover and base, and between upper end cover and base, be provided with radially pull back spring, ball pivot seat by upper end cover during use is hinged with the vertical oil cylinder of supporting leg, when because the distortion of ground injustice or supporting leg is when causing vertical oil cylinder piston bar to be subjected to moment of flexure, the upper end cover of leg disc will be under the moment of flexure effect base side travel relatively automatically, ball pivot seat on the upper end cover produces displacement with upper end cover, regulate minimizing even eliminate the moment of flexure that vertical oil cylinder is subjected to by the self adaptation of ball pivot seat, avoid the piston rod unbalance loading of vertical oil cylinder, prolong vertical oil cylinder service life; When the load of bearing when vertical oil cylinder is cancelled, upper end cover will be under the effect of pull back spring radially self-return.Adjustable support leg dish of the present utility model, simple in structure, adaptive ability is strong, economical and practical, easy to utilize.Be provided with insulating collar between ripple spring and upper end cover, can play lightning protection function, safety is good.Can control the radially relative motion between upper end cover and the base by the cooperation between the rubber block of installing on the center cross installed on the upper end cover and the base, make upper end cover under different mode of operations, have more suitably restriction relation with base.Be provided with nylon pad between upper end cover lower surface and the base upper surface, can avoid upper end cover and base direct friction, reduce the force of sliding friction that is subjected to when upper end cover moves, improve the automatically regulating sensitivity of leg disc.
Description of drawings
Fig. 1 is a main sectional structure scheme drawing of the present utility model;
Fig. 2 is a plan structure scheme drawing of the present utility model;
Fig. 3 is the structural representation of looking up behind the removal base;
Fig. 4 is the plan structure scheme drawing behind the removal upper end cover;
Fig. 5 is the perspective view of rubber block;
Fig. 6 is the enlarged drawing at I place among Fig. 1.
Each label is represented among the figure:
1, base; 2, upper end cover; 3, pull back spring radially; 4, insulating collar; 5, rubber block; 6, arc; 7, axial limiting snap ring; 8, nylon pad; 11, clamping platform; 12, circumferential positive stop lug boss; 21, ball pivot seat; 22, center cross; 51, counterbore shape concave station; 52, cross-hole; 53, annular groove; 54, draw-in groove.
The specific embodiment
Fig. 1 to Fig. 6 shows a kind of adjustable support leg dish embodiment of the present utility model, this leg disc comprises base 1 and upper end cover 2, upper end cover 2 upper ends are provided with ball pivot seat 21, and upper end cover 2 is installed in base 1 upper end, and are provided with radially pull back spring 3 between upper end cover 2 and base 1.Hinged with the vertical oil cylinder of supporting leg during use by ball pivot seat 21, when because the distortion of ground injustice or supporting leg is when causing vertical oil cylinder piston bar to be subjected to moment of flexure, the upper end cover 2 of leg disc will be under the moment of flexure effect base 1 side travel relatively automatically, ball pivot seat 21 on the upper end cover 2 produces displacement with upper end cover 2, regulate minimizing even eliminate the moment of flexure that vertical oil cylinder is subjected to by the self adaptation of ball pivot seat 21, avoid the piston rod unbalance loading of vertical oil cylinder, prolong vertical oil cylinder service life; When the load of bearing when vertical oil cylinder is cancelled, upper end cover 2 will be under the effect of pull back spring 3 radially self-return.Adjustable support leg dish of the present utility model, simple in structure, adaptive ability is strong, economical and practical, easy to utilize.
In the present embodiment, radially pull back spring 3 is a continuous uninterrupted ripple spring, is provided with insulating collar 4 between ripple spring and upper end cover 2, can play lightning protection function, and safety is good.Upper end cover 2 is placed in outside the base 1, and is provided with arc 6 in upper end cover 2 lower ends, and base 1 upper end is prolonged and is circumferentially with clamping platform 11, and arc 6 outsides are fixed on the upper end cover 2 through fastener, and arc 6 inboards are arranged in clamping platform 11 belows.Base 1 top is provided with counterbore in the center; and in counterbore, be equiped with rubber block 5; rubber block 5 lower ends are provided with counterbore shape concave station 51; rubber block 5 upper ends are provided with the cross-hole 52 that communicates with counterbore shape concave station 51; upper end cover 2 lower ends are equiped with the center cross 22 that can place in cross-hole 52 and the counterbore shape concave station 51; this cross-hole 52 and counterbore shape concave station 51 end that joins also is provided with chamfering; be convenient to center cross 22 and in counterbore shape concave station 51, enter cross-hole 52; the width of cross-hole 52 can be arranged to less than the diameter clearance between upper end cover 2 and the base 1 when designing simultaneously; when making 52 pairs of center crosss of cross-hole 22 form limit movement; also there is certain diameter clearance between upper end cover 2 and the base 1; thereby can protect the ripple spring, avoid the ripple spring to bear excessive extruding and lost efficacy.Rubber block 5 circumferentially offers annular groove 53 in edge, the outside, be provided with the axial limiting snap ring 7 that embeds in the annular groove 53 between base 1 and the rubber block 5, rubber block 5 offers draw-in groove 54 vertically in the outside, base 1 is provided with the circumferential positive stop lug boss 12 that cooperates with draw-in groove 54 in the counterbore inwall.By axial limiting snap ring 7 restriction rubber blocks 5 base 1 axial motion relatively not, limit not base 1 circumferential movement relatively of rubber blocks 5 by circumferential positive stop lug boss 12.Be provided with nylon pad 8 between upper end cover 2 lower surfaces and base 1 upper surface; can avoid upper end cover 2 and base 1 direct friction; reduce the force of sliding friction that is subjected to when upper end cover 2 moves; improve the automatically regulating sensitivity of leg disc; in order further to reduce friction, also can coat lubricating oil usually at nylon pad 8 upper surfaces.
Can control the radially relative motion between upper end cover 2 and the base 1 by the cooperation between center cross 22 and the rubber block 5, make upper end cover 2 under different mode of operations, have more suitably restriction relation with base 1.Hang carry before, when stretching out the vertical oil cylinder of supporting leg, the base 1 of leg disc at first lands, upper end cover 2 falls gradually, and center cross 22 moves down with upper end cover 2, and begins to enter counterbore shape concave station 51, after upper end cover 2 drops on the nylon pad 8 fully, center cross 22 is in the space of counterbore shape concave station 51 fully, makes the rotation of upper end cover 2 unrestricted, hangs year dead work and finishes.Hang when carrying, along with rising and falling of weight, supporting leg produces distortion, making the vertical oil cylinder that is connected on the supporting leg produce trace shakes, vertical oil cylinder piston bar unbalance loading makes vertical oil cylinder piston bar bulb that the trend of parallel motion be arranged, and is delivered to upper end cover 2 by ball pivot seat 21, upper end cover 2 overcomes relative base 1 fine setting of elastic force of ripple spring, can reduce even eliminate the suffered side force of vertical oil cylinder piston bar.When leg disc has been cancelled load, and when supporting leg packed up, base 1 is hanging on the arc 6 by clamping platform 11 under the deadweight effect, this moment, center cross 22 was inserted in cross-hole 52, be used to limit relatively rotating between upper end cover 2 and the base 1, be convenient to vehicle and under motoring condition, leg disc fixed, reduce safety hazard, simultaneously, the vibration that produces during vehicle ' can be decayed by rubber block 5.
Except that the structure shown in the present embodiment, the ripple spring can also have interruption with the centre, along with compression and release, and the annual spring that the head and the tail spacing changes, the ripple quantity of ripple spring can have multiple, can also be fixed on base 1 or upper end cover 2 one sides during installation.The shape of center cross 22 and rubber block 5 can be various, and the bifurcation angle of center cross 22 is 90 degree in the present embodiment, can change different bifurcation angles in addition, simultaneously the bifurcation angle of cross-hole 52 in the supporting design rubber block 5.
Above-mentioned is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model.Any those of ordinary skill in the art, under the situation that does not break away from the technical solutions of the utility model scope, all can utilize the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model, all should drop in the scope of technical solutions of the utility model protection any simple modification, equivalent variations and modification that above embodiment did according to the utility model technical spirit.
Claims (10)
1. adjustable support leg dish, it is characterized in that: comprise base (1) and upper end cover (2), described upper end cover (2) upper end is provided with ball pivot seat (21), described upper end cover (2) is installed in base (1) upper end, and is provided with radially pull back spring (3) between upper end cover (2) and base (1).
2. adjustable support leg dish according to claim 1 is characterized in that: be provided with insulating collar (4) between described radially pull back spring (3) and the upper end cover (2).
3. adjustable support leg dish according to claim 1 and 2, it is characterized in that: described upper end cover (2) is placed in outside the base (1), and be provided with arc (6) in upper end cover (2) lower end, described base (1) upper end is prolonged and is circumferentially with clamping platform (11), and arc (6) inboard is arranged in clamping platform (11) below.
4. adjustable support leg dish according to claim 3, it is characterized in that: described base (1) top is provided with counterbore in the center, and in counterbore, be equiped with rubber block (5), described rubber block (5) lower end is provided with counterbore shape concave station (51), rubber block (5) upper end is provided with the cross-hole (52) that communicates with counterbore shape concave station (51), and described upper end cover (2) lower end is equiped with the center cross (22) that can place in described cross-hole (52) and the counterbore shape concave station (51).
5. adjustable support leg dish according to claim 4 is characterized in that: described rubber block (5) along circumferentially offering annular groove (53), is provided with the axial limiting snap ring (7) that embeds in the annular groove (53) in the outside between described base (1) and the rubber block (5).
6. adjustable support leg dish according to claim 5 is characterized in that: described rubber block (5) offers draw-in groove (54) vertically in the outside, and described base (1) is provided with the circumferential positive stop lug boss (12) that cooperates with draw-in groove (54) in the counterbore inwall.
7. adjustable support leg dish according to claim 1 and 2 is characterized in that: be provided with nylon pad (8) between described upper end cover (2) lower surface and base (1) upper surface.
8. adjustable support leg dish according to claim 6 is characterized in that: be provided with nylon pad (8) between described upper end cover (2) lower surface and base (1) upper surface.
9. adjustable support leg dish according to claim 1 and 2 is characterized in that: described radially pull back spring (3) is the ripple spring.
10. adjustable support leg dish according to claim 8 is characterized in that: described radially pull back spring (3) is the ripple spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020513013 CN201777804U (en) | 2010-09-01 | 2010-09-01 | Disc with adjustable support legs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020513013 CN201777804U (en) | 2010-09-01 | 2010-09-01 | Disc with adjustable support legs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201777804U true CN201777804U (en) | 2011-03-30 |
Family
ID=43791025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020513013 Expired - Fee Related CN201777804U (en) | 2010-09-01 | 2010-09-01 | Disc with adjustable support legs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201777804U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416933A (en) * | 2010-09-28 | 2012-04-18 | 徐州重型机械有限公司 | Construction machinery chassis and supporting leg supporting device thereof |
| CN102826466A (en) * | 2012-09-18 | 2012-12-19 | 中联重科股份有限公司 | Support device and crane |
| CN109590884A (en) * | 2019-01-11 | 2019-04-09 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Overloading disk wafer transmission equipment and conveyer system |
-
2010
- 2010-09-01 CN CN 201020513013 patent/CN201777804U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416933A (en) * | 2010-09-28 | 2012-04-18 | 徐州重型机械有限公司 | Construction machinery chassis and supporting leg supporting device thereof |
| CN102416933B (en) * | 2010-09-28 | 2013-09-04 | 徐州重型机械有限公司 | Construction machinery chassis and supporting leg supporting device thereof |
| CN102826466A (en) * | 2012-09-18 | 2012-12-19 | 中联重科股份有限公司 | Support device and crane |
| WO2014043933A1 (en) * | 2012-09-18 | 2014-03-27 | 中联重科股份有限公司 | Supporting device and cranes |
| CN109590884A (en) * | 2019-01-11 | 2019-04-09 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Overloading disk wafer transmission equipment and conveyer system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20130901 |