CN108639978B - Supporting leg disc and crane provided with same - Google Patents
Supporting leg disc and crane provided with same Download PDFInfo
- Publication number
- CN108639978B CN108639978B CN201810503677.5A CN201810503677A CN108639978B CN 108639978 B CN108639978 B CN 108639978B CN 201810503677 A CN201810503677 A CN 201810503677A CN 108639978 B CN108639978 B CN 108639978B
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- CN
- China
- Prior art keywords
- oil cylinder
- guide groove
- ball socket
- supporting seat
- supporting leg
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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
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a supporting leg disc and a crane for mounting the same, belonging to the technical field of crane equipment.A supporting leg disc comprises a guide groove, a supporting seat for mounting the guide groove and a ball socket arranged at the top of the supporting seat for mounting a ball head of an oil cylinder; a limiting groove is formed in the supporting seat, a ball socket is embedded into the limiting groove, and the ball socket and the supporting seat are in interference fit; the guide groove is of a nonlinear structure, a hook limiting beam, a working hole position and a hanging hole position are arranged on the guide groove, and when the ball head of the oil cylinder vertical to the oil cylinder is positioned in the ball socket, a fastening pin shaft is arranged in the working hole position to enable the supporting leg plate II to be in a working state; when the oil cylinder ball head of the vertical oil cylinder is separated from the ball socket, a fastening pin shaft is arranged in the hanging hole position to enable the supporting leg plate II to be in a non-working state. The supporting leg disc provided by the invention adopts an integral forming structure to manufacture the supporting seat of the supporting leg disc, the specific gravity of the material of the supporting seat is lighter than that of the existing steel structure, and the weight of the whole supporting leg disc structure can be greatly reduced compared with that of a steel welding structure.
Description
Technical Field
The invention relates to a supporting leg disc and a crane provided with the same, and belongs to the technical field of crane equipment.
Background
The supporting foot disc in the crane is of an approximate disc structure and is used for supporting the crane for lifting operation and transmitting acting force to a supporting surface, so that the effects of bearing capacity and stabilizing operation equipment are achieved. Generally, a crane has four leg plates, and the four leg plates are in contact with a support surface during a lifting operation to form four-point support.
The supporting foot plate in the crane is generally arranged at the tail end of a supporting foot vertical oil cylinder and moves along with the vehicle and the vertical oil cylinder. The support leg disc applied to the crane mainly has two forms, one is a gland type; the other type is a push-pull type, as shown in figure 1, a support foot plate I1 is connected with a vertical oil cylinder 2, the vertical oil cylinder 2 is connected with a movable support leg 3, and the movable support leg 3 is arranged on a frame 4.
As shown in fig. 2 and 3, the push-pull type support leg disc I1 is welded by a steel structural member, a straight groove-shaped rail is welded with the base 7, and a ball head of the vertical oil cylinder 2 can slide along the groove-shaped rail. In fig. 2 and 3, schematic diagrams of two states formed by ball head sliding adjustment are shown, and a limiting pin shaft 8 fixes the relative position of the oil cylinder ball head and the base 7 through a hole on a groove-shaped track. When the vehicle runs, the limiting pin shaft 8 is pulled down, the groove-shaped track is pushed to be clamped with the fixing device 6, the fixing device 6 is installed at the fixed end 5 of the vehicle frame, and then the limiting pin shaft 8 is inserted into the groove-shaped track (as shown in a state of fig. 2). During hoisting operation, the position of the limiting pin shaft 8 is adjusted to enable the ball head of the oil cylinder to be aligned with the ball socket of the base 7 (as shown in a state of fig. 3), the position is the working state of the first support leg disc 1, the first support leg disc 1 can bear corresponding load, and the working state needs two limiting pin shafts 8 to limit the oil cylinder.
In use, the existing push-pull type support leg disc has the following problems:
1) the guide groove of the existing supporting leg plate is linear and can only be pushed and pulled along the linear direction. In some products, because the space is small, the product is simply pushed and pulled along the straight line direction and is not arranged; the supporting foot plate is pushed and pulled along the straight line direction, the whole supporting foot plate is close to the rear part of the vehicle, the supporting foot plate is an influence factor of a departure angle, the trafficability characteristic of the vehicle is influenced, and the departure angle is shown in figure 4.
2) The existing supporting leg disc is welded by a steel structure, has heavier weight, is difficult to adjust two position states by manpower, and has single integral weight and structural form which are key points needing to be lifted under the requirement of light structure of the whole machine.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a support leg disc and a crane provided with the support leg disc.
In order to achieve the purpose, the invention adopts a support leg disc, which comprises a guide groove, a support seat for installing the guide groove and a ball socket arranged at the top of the support seat for installing a ball head of an oil cylinder;
a limiting groove is formed in the supporting seat, the ball socket is embedded into the limiting groove, and the ball socket and the supporting seat are in interference fit;
the guide groove is of a nonlinear structure, a hook limiting beam, a working hole position and a hanging hole position are arranged on the guide groove, and when the ball head of the oil cylinder vertical to the oil cylinder is positioned in the ball socket, a fastening pin shaft is arranged in the working hole position to enable the supporting leg plate II to be in a working state; when the oil cylinder ball head of the vertical oil cylinder is separated from the ball socket, a fastening pin shaft is arranged in the hanging hole position to enable the supporting leg plate II to be in a non-working state.
As an improvement, the supporting seat is made of light materials.
As an improvement, the ball socket is made of alloy steel.
As an improvement, the guide groove is fixedly arranged on the supporting seat through a fastening bolt and a gasket.
As an improvement, the end part of the fastening pin shaft is fixed through a spring pin.
As an improvement, the guide groove is of an arc-shaped structure, and a handle hole position is formed in one side of the guide groove.
In addition, the invention also provides a crane, and the supporting foot disk is arranged on the crane.
Compared with the prior art, the invention has the beneficial effects that:
1) the supporting leg disc provided by the invention adopts an integral forming structure to manufacture the supporting seat of the supporting leg disc, the specific gravity of the material of the supporting seat is lighter than that of the existing steel structure, and the weight of the whole supporting leg disc structure can be greatly reduced compared with that of a steel welding structure.
2) According to the invention, the cylindrical ball socket is embedded into the supporting seat, and the ball socket and the supporting seat are connected together in an interference fit manner, so that the load can be uniformly transferred to the supporting seat, and experiments prove that the service life of the structure meets the requirements.
3) The non-linear guide groove is adopted, and compared with the existing linear guide groove, the non-linear guide groove can only extend and retract linearly, the support leg disc can move according to the radian of the set guide groove, and the arc guide groove is arranged on a vehicle with limited space, so that the interference of the support leg disc with other parts in the process of sliding and adjusting the position can be avoided, the support leg disc can be ensured to be smoothly adjusted to a fixed position, the support leg disc does not exceed the vehicle width, and the departure angle of the vehicle can not be influenced.
Drawings
FIG. 1 is a schematic view of a conventional push-pull type tray;
FIG. 2 is a schematic diagram illustrating a retracted state of a conventional push-pull tray;
FIG. 3 is a schematic view of a conventional push-pull type leg plate;
FIG. 4 is a schematic diagram of a prior art vehicle de-heading angle demarcation;
FIG. 5 is a schematic diagram of an exploded structure of the leg plate of the present invention;
FIG. 6 is a schematic structural view of the support base of the present invention;
FIG. 7 is a schematic view of the structure of the guide groove of the present invention;
FIG. 8 is a schematic view of the operation state of the leg plate according to the present invention;
FIG. 9 is a first diagram illustrating a suspended state of the leg tray according to the present invention;
FIG. 10 is a second diagram illustrating a suspended state of the leg tray according to the present invention;
in the figure: 1. the device comprises a first support leg disc, a second support leg disc, a first vertical oil cylinder, a third support leg, a fourth support leg disc, a fifth support leg disc, a sixth.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in fig. 5, 6 and 7, a leg plate, the second leg plate 21 includes a guide groove 12, a support base 13 for mounting the guide groove 12, and a ball socket 14 arranged at the top of the support base 13 for mounting a ball head of a cylinder;
an anti-rotation limiting groove 15 is formed in the supporting seat 13, the ball socket 14 is embedded into the limiting groove 15, and the ball socket 14 and the supporting seat 13 are in interference fit; after assembly, the limiting groove 15 can prevent the ball socket 14 from rotating in the supporting seat 13, the ball socket 14 is made of metal alloy steel, the ball socket 14 is a force transmission part between the ball head of the oil cylinder and the supporting seat 13, and the ball socket 14 bears repeated alternating load in the using process and is easy to generate fatigue damage;
the guide groove 12 adopts a nonlinear structure, a hook limiting beam 16, a working hole position 18 and a hanging hole position 19 are arranged on the guide groove 12, and when the ball head of the oil cylinder vertical to the oil cylinder 2 is positioned in the ball socket 14, a fastening pin shaft 11 is arranged in the working hole position 18 to enable the supporting leg plate II 21 to be in a working state; when the ball head of the vertical oil cylinder 2 is separated from the ball socket 14, the fastening pin shaft 11 is installed in the hanging hole 19 to enable the second support leg disc 21 to be in a non-working state.
As an improvement of the embodiment, the supporting seat 13 is made of light materials, and can be made of metal materials or other non-metal materials, the supporting foot plate bearing part (the supporting seat 13) is made of a structure which is integrally formed by die casting, the specific gravity of the material of the structure is lighter than that of a steel structure, and the weight of the whole structure of the supporting foot plate is reduced from 1/3 to 1/2 relative to that of the steel structure supporting foot plate while the bearing calibration load is ensured.
As an improvement of the embodiment, the guide groove 12 is fixedly arranged on the supporting seat 13 through the fastening bolt 9 and a gasket, so that the integral structure is more stable, and the installation is convenient.
As the improvement of the embodiment, the end part of the fastening pin shaft 11 is fixed by the spring pin 10, so that the assembly and disassembly are convenient.
As a modification of the embodiment, the guide groove 12 is of an arc structure, that is, the change of the position of the leg is moved to a corresponding position through a non-linear track and is fixed; one side of the guide groove 12 is provided with a handle hole 17, so that the use is convenient.
In addition, the invention also provides a crane, and the supporting foot disk is arranged on the crane.
When the support leg disc of the invention is used, the operation state is as follows:
when the crane works, the relative positions of the second support leg disc 21 and the hook 22 are operated firstly, so that the second support leg disc 21 is separated from the hook 22, then the vertical oil cylinder 2 is operated, so that the second support leg disc 21 is supported on the ground, then the fastening pin shaft 11 is installed at the working hole position 18 and fastened through the spring pin 10, and the concrete structure is shown in fig. 8.
The non-working state of the supporting leg plate is as follows:
the fastening pin shaft 11 is pulled out, the supporting leg plate II 21 is pushed to rotate rightwards along the guide groove 12, the hook 22 enters the guide groove 12, the hook 22 moves to the hook limiting cross beam 16 of the guide groove 12 to be naturally limited, at the moment, the fastening pin shaft 11 is inserted into the hanging hole position 19 to limit the supporting leg plate II 21 to move leftwards, and at the moment, the supporting leg plate II 21 is locked. The hanging state of the second support leg plate 21 is shown in figures 9 and 10, and in addition, compared with the prior art that two limiting pin shafts 8 are needed to realize the limiting function of the vertical oil cylinder 2, the invention is improved by adopting a fastening pin shaft 11 to be respectively arranged at a working hole position 18 and a hanging hole position 19, so that the limiting function of the working state and the hanging state of the ball head of the vertical oil cylinder can be realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A supporting leg disc II (21) comprises a guide groove (12), a supporting seat (13) used for installing the guide groove (12) and a ball socket (14) arranged at the top of the supporting seat (13) and used for installing a ball head of an oil cylinder, wherein a limiting groove (15) is formed in the supporting seat (13), and the ball socket (14) is embedded into the limiting groove (15), and is characterized in that the ball socket (14) and the supporting seat (13) are in interference fit;
the guide groove (12) adopts a nonlinear structure, a hook limiting beam (16), a working hole position (18) and a hanging hole position (19) are arranged on the guide groove (12), and when an oil cylinder ball head of the vertical oil cylinder (2) is positioned in the ball socket (14), a fastening pin shaft (11) is arranged in the working hole position (18) to enable the support leg plate II (21) to be in a working state; when the oil cylinder ball head of the vertical oil cylinder (2) is separated from the ball socket (14), a fastening pin shaft (11) is arranged in the hanging hole position (19) to enable the supporting leg plate II (21) to be in a non-working state.
2. A headboard according to claim 1, characterized in that the support (13) is made of a light material.
3. A headboard according to claim 1, characterized in that the ball socket (14) is made of alloy steel.
4. A headboard according to claim 1, characterized in that the guide groove (12) is fixed to the support (13) by means of a fastening bolt (9) and a washer.
5. A headboard according to claim 1, characterized in that the ends of the fastening pins (11) are fixed by spring pins (10).
6. A headboard according to claim 1, wherein the channel (12) is of arcuate configuration, and the handle hole (17) is provided in one side of the channel (12).
7. A crane, characterized in that the spider as claimed in any one of claims 1 to 6 is mounted on the crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810503677.5A CN108639978B (en) | 2018-05-23 | 2018-05-23 | Supporting leg disc and crane provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810503677.5A CN108639978B (en) | 2018-05-23 | 2018-05-23 | Supporting leg disc and crane provided with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108639978A CN108639978A (en) | 2018-10-12 |
| CN108639978B true CN108639978B (en) | 2019-12-20 |
Family
ID=63757936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810503677.5A Active CN108639978B (en) | 2018-05-23 | 2018-05-23 | Supporting leg disc and crane provided with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108639978B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479173B (en) * | 2021-07-27 | 2022-08-16 | 三一汽车起重机械有限公司 | Landing leg fixing device, landing leg assembly and engineering machinery |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000086163A (en) * | 1998-09-04 | 2000-03-28 | Sumitomo Constr Mach Co Ltd | Outrigger device for construction machine |
| JP3271036B2 (en) * | 1994-04-04 | 2002-04-02 | 株式会社加藤製作所 | Crane truck fall prevention device |
| CN201002939Y (en) * | 2007-01-25 | 2008-01-09 | 徐州重型机械有限公司 | Push-pull type supporting leg disc |
| CN201362562Y (en) * | 2008-11-14 | 2009-12-16 | 四川长江工程起重机有限责任公司 | Position-adjusting supporting foot disc of crane |
| JP2010222138A (en) * | 2009-03-25 | 2010-10-07 | Tadano Ltd | Outrigger device |
| CN102311056A (en) * | 2010-07-08 | 2012-01-11 | 徐州重型机械有限公司 | Crane supporting leg supporting device and crane using same |
| CN202481969U (en) * | 2011-12-22 | 2012-10-10 | 徐州重型机械有限公司 | Support leg plate and crane provided with same |
| CN203295091U (en) * | 2013-05-10 | 2013-11-20 | 北汽福田汽车股份有限公司 | Supporting leg disc assembly |
| JP2015059017A (en) * | 2013-09-19 | 2015-03-30 | コベルコクレーン株式会社 | Outrigger float and working vehicle |
| CN204366953U (en) * | 2014-12-19 | 2015-06-03 | 重庆树德教育研究所 | A kind of four-degree-of-freedom manipulator |
-
2018
- 2018-05-23 CN CN201810503677.5A patent/CN108639978B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3271036B2 (en) * | 1994-04-04 | 2002-04-02 | 株式会社加藤製作所 | Crane truck fall prevention device |
| JP2000086163A (en) * | 1998-09-04 | 2000-03-28 | Sumitomo Constr Mach Co Ltd | Outrigger device for construction machine |
| CN201002939Y (en) * | 2007-01-25 | 2008-01-09 | 徐州重型机械有限公司 | Push-pull type supporting leg disc |
| CN201362562Y (en) * | 2008-11-14 | 2009-12-16 | 四川长江工程起重机有限责任公司 | Position-adjusting supporting foot disc of crane |
| JP2010222138A (en) * | 2009-03-25 | 2010-10-07 | Tadano Ltd | Outrigger device |
| CN102311056A (en) * | 2010-07-08 | 2012-01-11 | 徐州重型机械有限公司 | Crane supporting leg supporting device and crane using same |
| CN202481969U (en) * | 2011-12-22 | 2012-10-10 | 徐州重型机械有限公司 | Support leg plate and crane provided with same |
| CN203295091U (en) * | 2013-05-10 | 2013-11-20 | 北汽福田汽车股份有限公司 | Supporting leg disc assembly |
| JP2015059017A (en) * | 2013-09-19 | 2015-03-30 | コベルコクレーン株式会社 | Outrigger float and working vehicle |
| CN204366953U (en) * | 2014-12-19 | 2015-06-03 | 重庆树德教育研究所 | A kind of four-degree-of-freedom manipulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108639978A (en) | 2018-10-12 |
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