CN214192357U - Auxiliary supporting leg and crane with same - Google Patents

Abstract

The utility model relates to an auxiliary supporting leg and a crane with the same, belonging to the technical field of construction machinery; the support leg mounting frame is arranged on a rotary table of the crane, and the support cylinder is movably connected with the rotary table through a chain hooking device; when the crane is used, the supporting cylinder can be hung and stored and is closely attached to the lower part of the rotary table, when the crane is transported, the supporting cylinder can be separated from the chain hooking device and rotates to a vertical position, and the limiting device can fix and limit the supporting cylinder at the vertical position; the utility model provides an auxiliary leg and have hoist of auxiliary leg can prevent to turn on one's side when the hoist complete machine transports, does not influence the normal use of each function when the hoist normally uses again, transports safelyr, and it is more convenient to use, and efficiency is higher.

Description

Auxiliary supporting leg and crane with same

Technical Field

The utility model relates to an auxiliary leg and have hoist of auxiliary leg belongs to construction machinery technical field.

Background

When the crawler crane is used in a transition place, the crawler crane is usually required to be transported by a whole machine for improving the use efficiency, and due to the fact that in the transportation process, the whole machine is prone to being overturned due to the fact that road conditions are unstable, the road surface is uneven, impact, sudden braking, sudden turning and the like, great traffic risks and potential safety hazards exist for personnel, the damage rate is high for equipment, and the production cost is high and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide an auxiliary leg and have auxiliary leg's hoist, turn on one's side when can preventing the hoist complete machine transportation, do not influence the normal use of each function when the hoist normally uses again, the transportation is safer, and it is more convenient to use, and efficiency is higher.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an auxiliary supporting leg comprises a supporting leg mounting frame, a supporting cylinder and a limiting device, wherein the supporting cylinder is rotatably hinged with the supporting leg mounting frame; when the crane is used, the supporting cylinder can be hung and stored, the adjacent part is attached to the lower part of the rotary table, when the crane is transported, the supporting cylinder can be separated from the hook chain device and is rotated to the vertical position, and the limiting device can fix and limit the supporting cylinder at the vertical position.

Further, the landing leg mounting bracket is rotatably hinged with the supporting cylinder through a first bolt, the limiting device comprises a second bolt, a pin hole which can allow the second bolt to be inserted is formed in the landing leg mounting bracket, a limiting hole which can allow the second bolt to be inserted is formed in the supporting cylinder, when the supporting cylinder rotates to the vertical position, the second pin shaft can be inserted into the limiting hole and the pin hole, the supporting cylinder is fixed, the second pin shaft can be in clearance fit with the limiting hole, and the second pin shaft can be in clearance fit with the pin hole.

Further, second bolt one end is equipped with the shaft shoulder, the shaft shoulder width is greater than the width of second bolt, the second bolt other end is equipped with the perforation, stop device still includes the elasticity safety pin, elasticity safety pin and perforation releasable connection.

Further, the elasticity safety pin is including wearing the pole, colluding frame and torsional spring, the pole other end connection colludes the frame is worn in the connection of torsional spring one end, it can pass the perforation to wear the pole to the end can be blocked and establish in colluding the frame.

Further, wear the pole, collude frame and torsional spring structure as an organic whole, the end of torsional spring one side is the U type towards wearing the pole direction bending, forms to collude the frame.

Further, collude the chain device and include couple, chain and hanging hole, chain one end is connected with the couple, and the other end is connected with the couple, the hanging hole sets up the end at a support section of thick bamboo, when the couple colluded and establishes in the hanging hole, the axis of a support section of thick bamboo and the contained angle between the horizontal plane are not more than 30.

Further, a crane comprises the auxiliary support leg.

Compared with the prior art, the utility model discloses the beneficial effect who reaches:

the technical scheme is provided with the second bolt, so that the supporting cylinder can be quickly fixed and locked when rotating to the vertical position, the use is more convenient, the crane can be supported in the transportation process, the side turning of the crane is avoided, and the use is safer;

the technical scheme is provided with the chain hooking device, so that the supporting cylinder can be quickly fixed when being accommodated and attached below the rotary table, the shaking of the supporting cylinder in the use process of the crane is reduced, and the use is more convenient and safer;

this technical scheme's second bolt is equipped with the shaft shoulder, is connected with the elasticity safety pin, can be with the second bolt restriction fixed more firm, stable, the security is higher.

Drawings

Fig. 1 is a schematic view showing a first usage state of a crane with an auxiliary support leg according to an embodiment of the present invention;

fig. 2 is a schematic view showing a first usage state of a crane with an auxiliary support leg according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a hanging-up auxiliary leg according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a secondary support leg provided by an embodiment of the present invention when suspended;

fig. 5 is a schematic perspective view of a first auxiliary support leg according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a second three-dimensional structure of an auxiliary leg according to an embodiment of the present invention when the auxiliary leg is put down;

fig. 7 is a schematic perspective view of an elastic pin of an auxiliary leg according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a second pin of an auxiliary leg according to an embodiment of the present invention.

Description of reference numerals: 1-supporting leg mounting frame, 2-supporting cylinder, 4-rotary table, 5-chain hooking device, 6-first bolt, 7-second bolt, 8-pin hole, 9-limiting hole, 10-shaft shoulder, 11-through hole, 12-elastic pin, 13-through rod, 14-hook frame, 15-torsion spring, 16-hook, 17-chain and 18-hook hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The auxiliary supporting leg shown in the attached drawings comprises a supporting leg mounting frame 1, a supporting cylinder 2 and a limiting device, wherein the supporting cylinder 2 is rotatably hinged with the supporting leg mounting frame, the limiting device is arranged on the supporting leg mounting frame, the supporting leg mounting frame is arranged on a rotary table 4 of a crane, and the supporting cylinder is movably connected with the rotary table through a chain hooking device 5; when the crane is used, the supporting cylinder can be hung and stored and is closely attached to the lower part of the rotary table, when the crane is transported, the supporting cylinder can be separated from the chain hooking device and rotates to a vertical position, and the limiting device can fix and limit the supporting cylinder at the vertical position;

in the embodiment, the crane at least comprises two states, namely a working state and a transportation state, and in the working state, the supporting cylinder can be accommodated below the rotary table by the chain hooking device, so that the influence on the rotation of the rotary table, the operation of the arm beam and the like when the crane works is avoided;

during the hoist transportation, adopt trailer transportation more, but hoist length is great, lead to the focus unstability easily, in addition in the transportation, the unstability of traffic conditions and road conditions, prior art's hoist does not have other bearing structure, the very easy emergence accident of turning on one's side when leading to the transportation, cause personnel's potential safety hazard and equipment damage, a supporting cylinder in this embodiment can be when the hoist transportation, it is fixed to rotate to vertical position and lock, provide extra support for the hoist, avoid taking place to turn on one's side, for better supporting, reduce the impact and the instantaneous stress concentration of a supporting cylinder to transport means such as trailer, a supporting cylinder below can be equipped with by rubber, the buffer layer that materials such as plank were made.

According to one embodiment, the supporting leg mounting frame is rotatably hinged with the supporting cylinder through a first bolt 6, the limiting device comprises a second bolt 7, a pin hole 8 capable of allowing the second bolt to be inserted is formed in the supporting leg mounting frame, a limiting hole 9 capable of allowing the second bolt to be inserted is formed in the supporting cylinder, and when the supporting cylinder rotates to a vertical position, the second pin shaft can be inserted into the limiting hole and the pin hole to fix the supporting cylinder; the second pin shaft can be in clearance fit with the limiting hole, and the second pin shaft can be in clearance fit with the pin hole;

the first bolt is used as a rotating shaft, and the second bolt can be connected with the supporting leg mounting frame and the supporting cylinder in a plugging and unplugging manner, so that the supporting leg mounting frame and the supporting cylinder can be conveniently and quickly disassembled and assembled for use; when the supporting cylinder rotates until the pin hole is correspondingly consistent with the limiting hole, the supporting cylinder is positioned in the vertical direction, and the second pin shaft is inserted at the moment, so that the supporting cylinder can be locked at the position, stable support can be provided for the crane, and the crane is prevented from side turning during transportation;

the hoist is when operating condition and transportation state, and the second bolt is all inserted and is established in the pinhole, places on the landing leg mounting bracket, and the difference lies in, and the hoist is when the transportation state, and a support section of thick bamboo rotates to the vertical direction, and the second bolt not only passes the pinhole, still can pass the spacing hole on the support section of thick bamboo.

More specifically, one end of the second bolt is provided with a shaft shoulder 10, the width of the shaft shoulder is larger than that of the second bolt, the other end of the second bolt is provided with a through hole 11, the limiting device further comprises an elastic pin 12, and the elastic pin is detachably connected with the through hole;

the shaft shoulder can prevent that second bolt tip from directly passing spacing hole and pinhole, together with the elasticity safety pin, play limiting displacement to the both ends of second round pin axle, make it can keep constantly in pinhole and spacing downthehole in the transportation, ensure stability in use, when the state and the position of second bolt need be changeed, pull down the elasticity safety pin from the second bolt, outwards draw from the shaft shoulder and can pull out second round pin axle from pinhole and spacing downthehole, can rotate a support section of thick bamboo to required position afterwards.

In one embodiment, the elastic pin comprises a through rod 13, a hook frame 14 and a torsion spring 15, one end of the torsion spring is connected with the through rod, the other end of the torsion spring is connected with the hook frame, the through rod can penetrate through the through hole, and the tail end of the through rod can be clamped in the hook frame;

more specifically, the through rod, the hook frame and the torsion spring are of an integral structure, and the tail end of one side of the torsion spring is bent towards the direction of the through rod to form a U shape to form the hook frame;

the torsion spring has certain elasticity, applies external force to the penetrating rod to overcome the elastic action of the torsion spring, presses the penetrating rod towards the direction of the hook frame, when the penetrating rod is pressed to the opening of the hook frame, pulls the penetrating rod to one side, so that the penetrating rod can be separated from the hook frame, and then the external force is removed, the penetrating rod continues to move outwards under the elastic action of the torsion spring, so that the distance between the penetrating rod and the hook frame is larger and larger, and the penetrating rod is convenient to insert into the through hole;

after the penetrating rod is inserted into the penetrating hole, external force is applied to the penetrating rod, the penetrating rod overcomes the elastic action of a torsion spring, the penetrating rod is pressed towards the direction of the hook frame, when the penetrating rod is pressed to the opening of the hook frame, the penetrating rod is stirred into the opening of the hook frame, the external force is removed again, the penetrating rod is reset to the bending part of the hook frame under the elastic action of the torsion spring, the whole elastic pin forms a closed loop, the elastic pin can be prevented from being separated from the penetrating hole, and the use is safer and more convenient.

According to one embodiment, the chain hooking device comprises a hook 16, a chain 17 and a hanging hole 18, one end of the chain is connected with the hook, the other end of the chain is connected with the hook, the hanging hole is formed in the tail end of the supporting cylinder, and when the hook is hooked in the hanging hole, the included angle between the axis of the supporting cylinder and the horizontal plane is not more than 30 degrees;

the hook can adopt the fixed open-ended hook of C type, or adopt similar key ring structure, one side is equipped with the elasticity open-ended hook of activity, can conveniently hang with the hanging hole and put and can be quick break away from the hanging hole, in order to ensure convenient to use and safety, the revolving stage should be pressed close to as far as possible to the support cylinder after accomodating, the terminal distance holding surface that makes the support cylinder is enough high, also can reduce to use and make rocking of support cylinder, it is safer to use.

A crane comprising the auxiliary leg described above;

the auxiliary supporting leg can prevent the whole conveyor from tipping in the conveying process, saves time and space, does not need to be disassembled in the normal use process of the crane, and can be realized through simple rotation and insertion and extraction of the pin shaft.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims (7)

1. An auxiliary leg, characterized in that: the support leg mounting device comprises a support leg mounting frame (1), a support cylinder (2) and a limiting device, wherein the support cylinder is rotatably hinged with the support leg mounting frame, the limiting device is arranged on the support leg mounting frame, the support leg mounting frame is arranged on a rotary table (4) of a crane, and the support cylinder is movably connected with the rotary table through a chain hooking device (5); when the crane is used, the supporting cylinder can be hung and stored and is closely attached to the lower part of the rotary table; when the crane is transported, the supporting cylinder can be separated from the chain hooking device and is rotated to the vertical position, and the limiting device can fix and limit the supporting cylinder at the vertical position.

2. An auxiliary leg as defined in claim 1, wherein: the supporting leg mounting frame is rotatably hinged with the supporting cylinder through a first bolt (6), the limiting device comprises a second bolt (7), a pin hole (8) allowing the second bolt to be inserted is formed in the supporting leg mounting frame, a limiting hole (9) allowing the second bolt to be inserted is formed in the supporting cylinder, and when the supporting cylinder rotates to a vertical position, a second pin shaft can be inserted into the limiting hole and the pin hole to fix the supporting cylinder; the second pin shaft can be in clearance fit with the limiting hole, and the second pin shaft can be in clearance fit with the pin hole.

3. An auxiliary leg as defined in claim 2, wherein: second bolt one end is equipped with shaft shoulder (10), the shaft shoulder width is greater than the width of second bolt, the second bolt other end is equipped with perforation (11), stop device still includes elasticity safety pin (12), elasticity safety pin and perforation releasable connection.

4. An auxiliary leg as defined in claim 3, wherein: the elastic pin comprises a through rod (13), a hook frame (14) and a torsion spring (15), one end of the torsion spring is connected with the other end of the through rod to be connected with the hook frame, the through rod can penetrate through a through hole, and the tail end of the torsion spring can be clamped in the hook frame.

5. An auxiliary leg as defined in claim 4, wherein: wear the pole, collude frame and torsional spring structure as an organic whole, the terminal of torsional spring one side is bent towards the pole direction and is the U type, forms to collude the frame.

6. An auxiliary leg as defined in claim 1, wherein: collude the chain device and include couple (16), chain (17) and hanging hole (18), chain one end is connected with the couple, and the other end is connected with the couple, the hanging hole sets up the end at a support section of thick bamboo, when colluding and establishing in the hanging hole, the axis of a support section of thick bamboo and the contained angle between the horizontal plane are not more than 30.

7. A crane, characterized by: comprising an auxiliary leg according to any one of claims 1-6.

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