CN215974607U

CN215974607U - Landing leg longitudinal movement transmission mechanism of bridge girder erection machine

Info

Publication number: CN215974607U
Application number: CN202122220761.6U
Authority: CN
Inventors: 曹胜强; 田松; 王超
Original assignee: Henan Shenghua Heavy Crane Co ltd
Current assignee: Henan Shenghua Heavy Crane Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-03-08
Anticipated expiration: 2031-09-14

Abstract

The utility model relates to the technical field of portal cranes, and discloses a support leg longitudinal movement transmission mechanism of a bridge girder erection machine, which comprises two support legs and two support legs, wherein the two support legs are obliquely supported below two sides above the triangular beam, the triangular beam is made of I-shaped steel, a support is fixed at the top of each support leg, the I-shaped steel above the triangular beam is arranged in the support, sleeves are fixed on the surfaces below two sides of the support, locking bolts are transversely arranged in the sleeves, one ends of the locking bolts can slidably penetrate into the support, and one ends of the locking bolts on the inner side of the support are clamped above the bottoms of the I-shaped steel. According to the utility model, the support is arranged at the top of the support leg, so that the I-shaped steel of the triangular beam is arranged in the support, the locking bolt is retracted into the sleeve and then clamped above the bottom of the I-shaped steel, and then is locked by the plug bolt, so that the support leg and the triangular beam are conveniently assembled, and the assembly and locking are firmer, and the subsequent dismantling is also facilitated.

Description

Landing leg longitudinal movement transmission mechanism of bridge girder erection machine

Technical Field

The utility model relates to the technical field of portal cranes, in particular to a supporting leg longitudinal movement transmission mechanism of a bridge girder erection machine.

Background

At present, a gantry crane is a deformation of a bridge crane and is called a gantry crane. The device is mainly used for loading and unloading outdoor goods yards, stockyards and bulk goods. The portal crane has the characteristics of high site utilization rate, large operation range, wide application range, strong universality and the like, is widely used in port cargo yards, and has a main beam which is an inverted triangular beam with stable structure.

In the inverted triangle structure of the conventional electric hoist portal crane, the main beam support is installed on the supporting legs and is connected with the main beam through bolts, the potential safety hazard is increased by multiple times of bolt connection, and the main beam support are bound together when the main beam is hoisted, so that the installation is inconvenient. Therefore, the longitudinal movement transmission mechanism for the support leg of the bridge girder erection machine is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a supporting leg longitudinal movement transmission mechanism of a bridge girder erection machine, which is characterized in that a support is arranged at the top of a supporting leg, so that I-shaped steel of a triangular beam is arranged in the support, a locking bolt is retracted into a sleeve and then clamped above the bottom of the I-shaped steel, and then is locked by a plug bolt, so that the supporting leg and the triangular beam are conveniently assembled, the assembly and the locking are firmer, the subsequent dismantling is facilitated, and the problems in the background art are solved.

In order to achieve the purpose, the utility model provides the following technical scheme: the supporting leg longitudinal movement transmission mechanism of the bridge girder erection machine comprises a triangular beam and two supporting legs, wherein the two supporting legs are obliquely supported below two sides above the triangular beam;

the triangular beam is made of I-shaped steel, a support is fixed to the top of each support leg, I-shaped steel on two sides above the triangular beam is arranged inside the support, sleeves are fixed to the surfaces below two sides of the support, locking bolts are transversely arranged inside the sleeves, one ends of the locking bolts can slidably penetrate through the inside of the support, one ends of the locking bolts on the inner side of the support are clamped above the bottoms of the I-shaped steel, springs are connected between the sleeves and groove bodies of the locking bolts, insertion holes are formed in the upper surface of each sleeve and communicated with the inside of each sleeve, through holes are formed in the locking bolts below the insertion holes and penetrate through the upper portion and the lower portion of each locking bolt, plug bolts are inserted into the insertion holes and the through holes, and the tops of the plug bolts are attached to the outer surface of the sleeves.

In a preferred embodiment of the present invention, a limiting piece is fixed around the middle outer ring of the locking bolt, the right side of the limiting piece abuts against the left side surface of the support, and the limiting piece is located inside the sleeve.

In a preferred embodiment of the present invention, a connecting rib is transversely connected and fixed between the left leg and the right leg below the triangular beam, and the connecting rib is parallel to the upper edge of the triangular beam.

As a preferred embodiment of the present invention, the inner wall surface of the sleeve at the bottom of the plug is provided with a slot, and the bottom of the plug is disposed in the slot.

As a preferred embodiment of the present invention, the right-side end of the locking bolt is provided with a circular arc surface.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the support leg longitudinal movement transmission mechanism of the bridge girder erection machine, the support is arranged at the top of the support leg, so that the I-shaped steel of the triangular beam is placed in the support, the locking bolt is retracted into the sleeve and then clamped above the bottom of the I-shaped steel, and then is locked by the plug bolt, so that the support leg and the triangular beam are conveniently assembled, the assembly and the locking are firm, and the subsequent dismantling is facilitated.

2. According to the supporting leg longitudinal movement transmission mechanism of the bridge girder erection machine, the limiting sheet is fixed on the outer ring of the middle part of the locking bolt in a surrounding mode, the right side of the limiting sheet abuts against the left side surface of the support, the limiting sheet is located on the inner side of the sleeve, and when the spring abuts against the locking bolt to enable the tail end of the locking bolt to extend into the support, the limiting sheet has a limiting effect on the locking bolt, and the locking bolt is prevented from extending into the support too much.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the overall structure of the leg longitudinal-shift transmission mechanism of the bridge girder erection machine of the present invention;

FIG. 2 is a schematic structural view of a joint between a support leg and an I-shaped steel of the support leg longitudinal movement transmission mechanism of the bridge girder erection machine;

fig. 3 is a detailed structural schematic diagram of a position A of the supporting leg longitudinal movement transmission mechanism of the bridge girder erection machine.

In the figure: 1. a triangular beam; 2. a support leg; 3. i-shaped steel; 4. a support; 5. connecting ribs; 6. a sleeve; 7. a locking bolt; 8. a jack; 9. a spring; 10. a slot; 11. plugging; 12. a through hole; 13. a limiting sheet.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the 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 thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the type of the electrical appliance provided by the utility model is only used for reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Referring to fig. 1-3, the present invention provides a technical solution: a supporting leg longitudinal movement transmission mechanism of a bridge girder erection machine comprises a triangular beam 1 and two supporting legs 2, wherein the two supporting legs 2 are obliquely supported below two sides above the triangular beam 1;

the triangular beam 1 is made of I-shaped steel 3, a support 4 is fixed at the top of a supporting leg 2, the I-shaped steel 3 on two sides above the triangular beam 1 is arranged inside the support 4, sleeves 6 are fixed on the surfaces below two sides of the support 4, locking bolts 7 are transversely arranged inside the sleeves 6, one ends of the locking bolts 7 can slidably penetrate into the support 4, one ends of the locking bolts 7 on the inner side of the support 4 are clamped above the bottoms of the I-shaped steel 3, springs 9 are connected between the sleeves 6 and groove bodies of the locking bolts 7, insertion holes 8 are formed in the upper surface of the sleeves 6, the insertion holes 8 are communicated with the inside of the sleeves 6, through holes 12 are formed in the locking bolts 7 below the insertion holes 8, the through holes 12 penetrate through the upper portion and the lower portion of the locking bolts 7, insertion bolts 11 are inserted in the insertion holes 8 and the through holes 12, and the tops of the insertion bolts 11 are attached to the outer surface of the sleeves 6.

In the embodiment (see fig. 1, 2 and 3), the support 4 is arranged on the top of the support leg 2, so that the i-shaped steel 3 of the triangular beam 1 is placed inside the support 4, the locking bolt 7 is retracted into the sleeve 6 and then clamped above the bottom of the i-shaped steel 3, and then is locked by the plug 11, so that the assembly of the support leg 2 and the triangular beam 1 is convenient, and the assembly is firm after locking, and the subsequent disassembly is also convenient.

In this embodiment (please refer to fig. 3), the middle outer ring of the locking bolt 7 is fixed with a limiting piece 13 around, the right side of the limiting piece 13 abuts against the left side surface of the support 4, and the limiting piece 13 is located inside the sleeve 6, by fixing the limiting piece 13 around the middle outer ring of the locking bolt 7, the right side of the limiting piece 13 abuts against the left side surface of the support 4, and the limiting piece 13 is located inside the sleeve 6, when the spring 9 abuts to make the end of the locking bolt 7 extend into the support 4, the limiting piece 13 has a limiting effect on the locking bolt 7, and the locking bolt 7 is prevented from extending into the support 4 too much.

In this embodiment (please refer to fig. 1), a connecting rib 5 is transversely connected and fixed between the left side supporting leg 2 and the right side supporting leg 2 below the triangular beam 1, the connecting rib 5 is parallel to the upper side of the triangular beam 1, and the fixing strength between the supporting legs 2 at the two sides can be enhanced by the arrangement of the connecting rib 5.

In this embodiment (see fig. 3), the inner wall surface of the sleeve 6 at the bottom of the plug 11 is provided with a slot 10, and the bottom of the plug 11 is disposed in the slot 10, and through the arrangement of the slot 10, the bottom of the plug 11 can be disposed in the slot 10, and is matched with the insertion hole 8 above the sleeve 6, so as to have a better locking effect.

In this embodiment (see fig. 3), the right end of the locking bolt 7 is configured as an arc surface, and the locking bolt 7 can be conveniently abutted into the sleeve 6 by the i-shaped steel 3 through the arc surface.

It should be noted that the utility model is a supporting leg longitudinal movement transmission mechanism of a bridge erecting machine, which comprises a triangular beam 1, supporting legs 2, i-shaped steel 3, a support 4, a connecting rib 5, a sleeve 6, a locking bolt 7, a jack 8, a spring 9, a slot 10, a plug 11, a through hole 12 and a limiting sheet 13, wherein the components are all universal standard components or components known by those skilled in the art, the structure and principle of the components can be known by technical manuals or conventional experimental methods, when in work, during assembly work, the supporting legs 2 are stably supported at a designated position on the ground, the plug 11 is drawn out, then the I-shaped steel 3 on two sides above the triangular beam 1 rotates the support 4 on the supporting legs 2 on two sides, then the lifting equipment gradually slowly lowers the triangular beam 1 until the I-shaped steel 3 enters the inner side of the support 4, and when the bottom of the I-shaped steel 3 contacts with a part of the locking bolt 7 on the inner side of the support 4, the locking bolt 7 is pushed outwards, so that the bottom of the I-shaped steel 3 can slide to the position below the locking bolt 7 and be positioned in the support 4, then, under the action of the spring 9, the locking bolt 7 moves towards the right side to be clamped below the bottom of the I-shaped steel 3, the limiting sheet 13 has a limiting effect on the locking bolt 7 to prevent the locking bolt from moving towards the right side too much, at the moment, the through hole 12 is aligned with the upper insertion hole 8 and the lower insertion groove 10, the insertion bolt 11 is inserted through the insertion hole 8, the bottom of the insertion bolt is arranged in the insertion groove 10 after penetrating through the through hole 12, the fixing of the locking bolt 7 can be completed, the locking bolt 7 can further stably lock the I-shaped steel 3 in the support 4 at the top of the supporting leg 2, when the I-shaped steel 3 is lifted upward, the plug 11 is pulled out to release the lock pin 7, the locking bolt 7 can be pushed to move towards the interior of the sleeve 6, and the I-shaped steel 3 can be taken out smoothly.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a bridge crane landing leg indulges and moves drive mechanism, includes triangular beam (1) and stabilizer blade (2), its characterized in that: the number of the support legs (2) is two, and the two support legs (2) are obliquely supported below two sides above the triangular beam (1);

the triangular beam (1) is made of I-shaped steel (3), a support (4) is fixed at the top of each support leg (2), the I-shaped steel (3) on two sides above the triangular beam (1) is arranged inside the support (4), sleeves (6) are fixed on the surfaces of two sides below the support (4), locking bolts (7) are transversely arranged inside the sleeves (6), one ends of the locking bolts (7) can slidably penetrate into the support (4), one ends of the locking bolts (7) on the inner side of the support (4) are clamped above the bottom of the I-shaped steel (3), springs (9) are connected between the sleeves (6) and groove bodies of the locking bolts (7), jacks (8) are formed in the upper surface of the sleeves (6), the jacks (8) are communicated with the inside of the sleeves (6), through holes (12) are formed in the locking bolts (7) below the jacks (8), the through holes (12) penetrate through the upper part and the lower part of the locking bolts (7), the plug (11) is inserted into the insertion hole (8) and the through hole (12), and the top of the plug (11) is attached to the outer surface of the sleeve (6).

2. The longitudinal movement transmission mechanism for the support leg of the bridge girder erection machine according to claim 1, wherein: the middle outer ring of the locking bolt (7) is fixedly provided with a limiting sheet (13) in a surrounding mode, the right side of the limiting sheet (13) is abutted to the left side surface of the support (4), and the limiting sheet (13) is located on the inner side of the sleeve (6).

3. The longitudinal movement transmission mechanism for the support leg of the bridge girder erection machine according to claim 1, wherein: and a connecting rib (5) is transversely connected and fixed between the left supporting leg (2) and the right supporting leg (2) below the triangular beam (1), and the connecting rib (5) is parallel to the upper edge of the triangular beam (1).

4. The longitudinal movement transmission mechanism for the support leg of the bridge girder erection machine according to claim 1, wherein: the inner wall surface of the sleeve (6) at the bottom of the plug (11) is provided with a slot (10), and the bottom of the plug (11) is arranged in the slot (10).

5. The longitudinal movement transmission mechanism for the support leg of the bridge girder erection machine according to claim 1, wherein: the right end of the locking bolt (7) is provided with a circular arc surface.