阅读说明：本技术 一种可调节的起重机支腿 (Adjustable crane supporting leg ) 是由 肖华 薛振 刘威 杨慧杰 于 2019-11-20 设计创作，主要内容包括：本发明公开了一种可调节的起重机支腿,包括固定台、转轴和固定支腿,所述固定台内贯穿有所述转轴,所述固定台一侧成型有所述固定支腿,所述固定支腿内设置有二号活塞杆,所述二号活塞杆一端设置有二号液压杆。有益效果在于：本发明通过设置的弹性阻尼缓冲器、固定座和固定台,使得支腿在遇到较大的水平作用力时,弹性阻尼缓冲器可以及时吸收一部分力的作用,避免支腿受到损坏,进而保证起重机的正常工作。(The invention discloses an adjustable crane supporting leg which comprises a fixed table, a rotating shaft and a fixed supporting leg, wherein the rotating shaft penetrates through the fixed table, the fixed supporting leg is formed on one side of the fixed table, a second piston rod is arranged in the fixed supporting leg, and a second hydraulic rod is arranged at one end of the second piston rod. Has the advantages that: according to the invention, through the elastic damping buffer, the fixed seat and the fixed table, when the landing leg meets a larger horizontal acting force, the elastic damping buffer can absorb a part of force in time, so that the landing leg is prevented from being damaged, and the normal work of the crane is further ensured.)

1. An adjustable crane leg, which is characterized in that: including fixed station (6), pivot (7) and fixed leg (5), it has to run through in fixed station (6) pivot (7), fixed station (6) one side shaping has fixed leg (5), be provided with No. two piston rods (12) in fixed leg (5), No. two piston rod (12) one end is provided with No. two hydraulic stem (9), No. two hydraulic stem (9) both sides are provided with fixing base (13), No. two hydraulic stem (9) are kept away from No. two piston rod (12) one side is provided with elastic damping buffer (10).

2. An adjustable crane leg as defined in claim 1, wherein: no. two piston rods (12) are kept away from No. two hydraulic stem (9) one end is provided with slip landing leg (4), the welding of slip landing leg (4) downside has the side to support lantern ring (3), be provided with hydraulic stem (2) in the side support lantern ring (3), hydraulic stem (2) inboard sliding connection has piston rod (8) No. one, piston rod (8) lower extreme has landing leg dish (1) through bolted connection, landing leg dish (1) outside shaping has protective housing (14), landing leg dish (1) downside is spliced and is had slipmat (15), landing leg dish (1) downside shaping is fluted (11).

3. An adjustable crane leg as defined in claim 2, wherein: the rotating shaft (7) is connected with the fixed platform (6) through a clamping groove, and the fixed seat (13) is welded with the fixed platform (6).

4. An adjustable crane leg as defined in claim 3, wherein: the fixed seat (13) is connected with the second hydraulic rod (9) through a bolt, and the elastic damping buffer (10) is connected with the fixed platform (6) through a bolt.

5. An adjustable crane leg as defined in claim 4, wherein: the second piston rod (12) is connected with the second hydraulic rod (9) in a sliding mode, and the second piston rod (12) is connected with the sliding support leg (4) through a bolt.

6. An adjustable crane leg as defined in claim 5, wherein: the sliding support leg (4) is connected with the fixed support leg (5) in a sliding mode, and the side support lantern ring (3) is connected with the first hydraulic rod (2) through bolts.

7. An adjustable crane leg as defined in claim 6, wherein: the number of the anti-skid pads (15) is four.

Technical Field

The invention relates to the field of cranes, in particular to an adjustable crane supporting leg.

Background

The mobile crane can be generally divided into an automobile crane (truck crane), a tire crane (tire crane), a cross-country tire crane, a full-road crane, a crawler crane (crawler crane), a special crane and the like, the support legs need to be released when the mobile crane is used for carrying out heavy object hoisting, a larger support plane is provided for the crane, and the crane is guaranteed to operate on the horizontal plane, so that the crane support legs have an important function on the crane.

The existing crane supporting legs support a crane in a fixed mode on horizontal and longitudinal supports, and when the crane encounters large horizontal acting force, a buffer device is lacked, so that force in the horizontal direction acts on the supporting legs, the supporting legs are damaged, and the safe operation of the crane cannot be guaranteed.

Disclosure of Invention

Technical problem to be solved

In order to overcome prior art not enough, now provide a hoist landing leg with adjustable, solved current hoist landing leg and supported for the hoist with fixed mode on level and vertical support, the hoist is meetting the horizontal effort when great, lacks buffer for the ascending power in horizontal direction is used in on the landing leg, and then damages the landing leg, can not guarantee the problem of the safe operation of hoist.

(II) technical scheme

The invention is realized by the following technical scheme: the invention provides an adjustable crane supporting leg which comprises a fixed table, a rotating shaft and a fixed supporting leg, wherein the rotating shaft penetrates through the fixed table, the fixed supporting leg is formed on one side of the fixed table, a second piston rod is arranged in the fixed supporting leg, a second hydraulic rod is arranged at one end of the second piston rod, fixed seats are arranged on two sides of the second hydraulic rod, and an elastic damping buffer is arranged on one side, far away from the second piston rod, of the second hydraulic rod.

Further, No. two piston rods are kept away from No. two hydraulic stem one end is provided with the slip landing leg, the welding of slip landing leg downside has the side to support the lantern ring, be provided with the hydraulic stem No. one in the side support lantern ring, No. one the inboard sliding connection of hydraulic stem has the piston rod No. one, piston rod lower extreme has the landing leg dish through bolted connection, the shaping of landing leg dish outside has the protective housing, landing leg dish downside is spliced there is the slipmat, landing leg dish downside shaping is fluted.

Through adopting above-mentioned technical scheme, the recess can make landing leg dish is more stable block go into on the supporting plane, improves the supporting effect of supporting disk, the slipmat can avoid landing leg dish and holding surface produce the slip, improve and support the quality.

Furthermore, the rotating shaft is connected with the fixed platform through a clamping groove, and the fixed seat is welded with the fixed platform.

Through adopting above-mentioned technical scheme, the pivot is connected with power device, can make the fixed station carries out rotation regulation in the horizontal direction, and then makes the landing leg dish can place in a more reasonable place.

Furthermore, the fixed seat is connected with the second hydraulic rod through a bolt, and the elastic damping buffer is connected with the fixed platform through a bolt.

Through adopting above-mentioned technical scheme, the elastic damping buffer is in No. two hydraulic stems receive great horizontal force and produce when removing, and the effect of timely absorbing force avoids No. two hydraulic stems damage, and then guarantee the normal work of hoist.

Furthermore, No. two piston rods with No. two hydraulic stem sliding connection, No. two piston rods with sliding leg passes through bolted connection.

By adopting the technical scheme, the second piston rod can move transversely under the action of the second hydraulic rod, so that the sliding support leg can be pushed to move transversely, and the support radius of the support leg disc can be adjusted.

Furthermore, the sliding support leg is connected with the fixed support leg in a sliding mode, and the side supporting lantern ring is connected with the first hydraulic rod through a bolt.

Through adopting above-mentioned technical scheme, the collateral branch supports the lantern ring and can be right hydraulic stem carries out the side support protection, avoids a hydraulic stem with sliding leg junction receives great shearing force and damages.

Furthermore, the number of the anti-skid pads is four.

By adopting the technical scheme, the anti-slip mat can play a good anti-slip role, and the support stability of the landing leg plate is ensured.

(III) advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

the invention aims to solve the problems that the existing crane supporting leg supports a crane in a fixed mode on horizontal and longitudinal supports, when the crane meets a large horizontal acting force, a buffer device is lacked, so that a force in the horizontal direction acts on the supporting leg, the supporting leg is further damaged, and the safe operation of the crane cannot be ensured.

Drawings

FIG. 1 is a front view of an adjustable crane leg according to the present invention;

FIG. 2 is a front cross-sectional view of a fixed bed in an adjustable crane leg according to the present invention;

fig. 3 is a bottom view of a leg plate in an adjustable crane leg according to the invention.

The reference numerals are explained below:

1. a leg plate; 2. a first hydraulic rod; 3. a side support collar; 4. a sliding leg; 5. fixing the supporting legs; 6. a fixed table; 7. a rotating shaft; 8. a first piston rod; 9. a second hydraulic rod; 10. an elastic damping buffer; 11. a groove; 12. a second piston rod; 13. a fixed seat; 14. a protective shell; 15. a non-slip mat.

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 with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, this embodiment of crane landing leg with adjustable, including fixed station 6, pivot 7 and fixed landing leg 5, run through pivot 7 in the fixed station 6, fixed landing leg 5 has been formed on one side of the fixed station 6, is provided with No. two piston rods 12 in the fixed landing leg 5, and No. two piston rods 12 one end is provided with No. two hydraulic stem 9, and No. two hydraulic stem 9 both sides are provided with fixing base 13, and No. two hydraulic stem 9 keeps away from No. two piston rods 12 one side and is provided with elasticity damping buffer 10.

No. two piston rods 12 keep away from No. two hydraulic stem 9 one end and are provided with slip landing leg 4, 4 downside welding of slip landing leg has the side to support lantern ring 3, be provided with hydraulic stem 2 in the side support lantern ring 3, 2 inboard sliding connection of hydraulic stem has piston rod 8 No. one, 8 lower extremes of piston rod have landing leg dish 1 through bolted connection, 1 outside shaping of landing leg dish has protective housing 14, 1 downside of landing leg dish is spliced there is slipmat 15, 1 downside shaping of landing leg dish is fluted 11, recess 11 can make landing leg dish 1 more stable card go into on the supporting plane, improve supporting disk 1's supporting effect, slipmat 15 can avoid landing leg dish 1 and holding surface to produce and slide, improve the support quality.

The rotating shaft 7 is connected with the fixing table 6 through the clamping groove, the fixing seat 13 is welded with the fixing table 6, the rotating shaft 7 is connected with the power device, the fixing table 6 can be adjusted in a rotating mode in the horizontal direction, and therefore the supporting leg disc 1 can be placed in a more reasonable place.

Fixing base 13 passes through bolted connection with No. two hydraulic stem 9, and elastic damping buffer 10 passes through bolted connection with fixed station 6, and elastic damping buffer 10 receives great horizontal effort when No. two hydraulic stem 9 produces the removal, and the effect of timely absorbing force avoids No. two hydraulic stem 9 to damage, and then guarantees the normal work of hoist.

No. two piston rods 12 and No. two hydraulic stem 9 sliding connection, No. two piston rods 12 pass through bolted connection with sliding leg 4, and No. two piston rods 12 can carry out lateral shifting under No. two hydraulic stem 9's effect, and then can promote sliding leg 4 and carry out lateral shifting, adjusts the support radius of landing leg dish 1.

Sliding leg 4 and 5 sliding connection of fixed leg, collateral branch support lantern ring 3 passes through bolted connection with hydraulic stem 2, and collateral branch support lantern ring 3 can carry out the side to hydraulic stem 2 and support the protection, avoids hydraulic stem 2 and sliding leg 4 junction to receive great shearing force and damage.

The number of the anti-slip pads 15 is four, and the anti-slip pads 15 can play a good anti-slip role, so that the support stability of the landing leg plate 1 is ensured.

The specific implementation process of this embodiment is as follows: when the device is used, an operator adjusts the device through the control device, so that the second hydraulic rod 9 pushes the second piston rod 12 to extend outwards, the second piston rod 12 can push the sliding support leg 4 out of the fixed support leg 5, the support radius of the support leg disc 1 is adjusted, when the radius of the support leg disc 1 meets the requirement, the first hydraulic rod 2 pushes the first piston rod 8 to push downwards, the support leg disc 1 can be stably supported on the ground, after the support is finished, the operator feeds back a horizontal signal detected by a double-shaft sensor on the crane to the automatic leveling system, and adjusts the first hydraulic rod 2 of each support leg disc 1, so that the crane can be kept at the horizontal position, and further the safe operation of the crane is ensured, when the support leg meets a large horizontal acting force through the arranged elastic damping buffer 10, the fixed seat 13 and the fixed table 6, the elastic damping buffer 10 can absorb a part of force in time, so that the supporting legs are prevented from being damaged, and the normal work of the crane is further ensured.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.