CN219386041U - Walking type travelling mechanism of large-tonnage bridge deck crane - Google Patents
Walking type travelling mechanism of large-tonnage bridge deck crane Download PDFInfo
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- CN219386041U CN219386041U CN202320232331.2U CN202320232331U CN219386041U CN 219386041 U CN219386041 U CN 219386041U CN 202320232331 U CN202320232331 U CN 202320232331U CN 219386041 U CN219386041 U CN 219386041U
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- track beam
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Abstract
The utility model discloses a walking type travelling mechanism of a large-tonnage bridge deck crane, which comprises the following components: the device comprises a track beam, a walking pushing seat, a front telescopic supporting leg, a front supporting leg, a rear telescopic supporting leg, a rear supporting leg and a longitudinal moving oil cylinder; the track beam is arranged on the bridge deck, and the walking pushing seat is detachably connected with the track beam and can slide along the top surface of the track beam; the front telescopic support leg and the front support leg are respectively arranged in front of the rear telescopic support leg and the rear support leg; the tops of the front telescopic supporting leg and the rear telescopic supporting leg are respectively fixedly connected with the bridge deck crane, and the bottoms of the front telescopic supporting leg and the rear telescopic supporting leg are respectively connected with the track beam in a sliding manner; the tops of the front supporting leg and the rear supporting leg are respectively fixedly connected with the bridge deck crane, and the bottoms of the front supporting leg and the rear supporting leg are respectively supported on the bridge deck; the movable end of the longitudinal moving oil cylinder is hinged with the front telescopic supporting leg, and the fixed end of the longitudinal moving oil cylinder is hinged with the walking pushing seat. The utility model can realize walking type advancing of the bridge deck crane and has high walking efficiency.
Description
Technical Field
The utility model relates to the field of bridge deck crane travelling devices. More particularly, the utility model relates to a walking mechanism of a large-tonnage bridge deck crane.
Background
The bridge deck crane is used as necessary large-scale key construction equipment in the construction process of the cable-stayed bridge, and the advanced, adaptability, safety, functionality and lifting capacity of the bridge deck crane are required to meet the design and construction requirements of modern cable-stayed bridges. The running gear is as the important component part of bridge floor loop wheel machine, and its efficiency and the stability of walking can influence the construction progress of whole engineering.
The running mode of the bridge deck crane can be divided into a tire type, a wheel rail type and a sliding type. The tire-type travelling mechanism has small bearing capacity and occupies a certain bridge deck space; the wheel-rail type travelling mechanism needs to be paved with special rails and special rail traction mechanisms, so that the synchronism and the efficiency are low; traditional slip walking mode adopts track roof beam and hydraulic cylinder combined structure form mostly, carries out the transportation of track roof beam through chain block or artifical transport, and its synchronism, degree of mechanization are low to can bury certain risk hidden danger down. Therefore, it is very necessary to develop a deck crane running gear which is efficient and stable and has a large bearing capacity.
Disclosure of Invention
It is an object of the present utility model to solve at least the above problems and to provide at least the advantages to be described later.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a walking mechanism of a large tonnage deck crane, comprising: the device comprises a track beam, a walking pushing seat, a front telescopic supporting leg, a front supporting leg, a rear telescopic supporting leg, a rear supporting leg and a longitudinal moving oil cylinder; the track beam is arranged on the bridge deck, and the walking pushing seat is detachably connected with the track beam and can slide along the top surface of the track beam; the front telescopic support leg and the front support leg are respectively arranged in front of the rear telescopic support leg and the rear support leg along the advancing direction of the bridge deck crane; the tops of the front telescopic supporting leg and the rear telescopic supporting leg are respectively fixedly connected with the bridge deck crane, and the bottoms of the front telescopic supporting leg and the rear telescopic supporting leg are respectively connected with the track beam in a sliding manner; the tops of the front supporting leg and the rear supporting leg are respectively fixedly connected with the bridge deck crane, and the bottoms of the front supporting leg and the rear supporting leg are respectively supported on the bridge deck; the movable end of the longitudinal moving oil cylinder is hinged with the front telescopic supporting leg, and the fixed end of the longitudinal moving oil cylinder is hinged with the walking pushing seat.
Preferably, the top surface of the rail beam is provided with a plurality of slots at intervals along the length direction thereof.
Preferably, the walking pushing seat comprises a longitudinally moving sliding seat in sliding connection with the track beam and a stop block hinged with the longitudinally moving sliding seat, the stop block can be inserted into the corresponding slot, and the width of the slot is larger than that of the stop block; and the two sides of the stop block are provided with stop shafts which are inserted into the longitudinal moving sliding seat.
Preferably, the front telescopic supporting leg and the rear telescopic supporting leg have the same structure and comprise an outer sleeve, an inner sleeve and a jacking cylinder, wherein the outer sleeve is sleeved on the inner sleeve, the top of the outer sleeve is fixedly connected with the bridge deck crane, and the bottom of the inner sleeve is in sliding connection with the track beam; the movable end of the jacking cylinder is hinged with the outer sleeve, and the fixed end of the jacking cylinder is hinged with the inner sleeve.
Preferably, the front supporting leg is a turnover supporting leg and comprises a front supporting leg main body, a first screw rod, a first supporting seat, a connecting rod and a turnover oil cylinder; the top of the front supporting leg main body is detachably connected with the bridge deck crane, the bottom of the front supporting leg main body is connected with the first supporting seat through the first screw rod, and the first supporting seat is supported on the bridge deck; one end of the connecting rod is hinged with the bridge deck crane, and the other end of the connecting rod is hinged with the front landing leg main body; the fixed end of the overturning oil cylinder is hinged with the bridge deck crane, and the movable end of the overturning oil cylinder is hinged with the front landing leg main body.
Preferably, the rear supporting leg comprises a rear supporting leg column body, a second screw rod and a second supporting seat, the top of the rear supporting leg main body is fixedly connected with the bridge deck crane, the bottom of the rear supporting leg main body is connected with the second supporting seat through the second screw rod, and the bottom of the second supporting seat is supported on the bridge deck.
The utility model at least comprises the following beneficial effects:
according to the walking type travelling mechanism of the large-tonnage bridge crane, the conversion of a bridge crane supporting system is realized through the expansion and contraction of the front telescopic supporting leg and the rear telescopic supporting leg, the walking pushing seat is moved and the longitudinal moving oil cylinder is expanded and contracted, the walking type advancing of the bridge crane is realized, the bearing capacity of the bridge crane is improved, the safety and the stability in travelling are enhanced, the travelling efficiency is high, and the construction is convenient.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic side view of a walking mechanism of a large tonnage bridge crane according to an embodiment of the present utility model;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;
FIG. 3 is a schematic view of the cross-sectional B-B structure of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 at C;
FIG. 5 is a top view of the track beam according to the above embodiment of the present utility model;
fig. 6 is a schematic structural view of the walking pushing seat according to the above embodiment of the present utility model;
FIG. 7 is a schematic view of the front leg according to the above embodiment of the present utility model;
FIG. 8 is a schematic view of the rear leg according to the above embodiment of the present utility model;
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, are all commercially available; in the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.
As shown in fig. 1 to 3, the present utility model provides a walking mechanism of a large tonnage bridge crane, comprising: the walking device comprises a track beam 1, a walking pushing seat 4, a front telescopic supporting leg 6, a front supporting leg 7, a rear telescopic supporting leg 3, a rear supporting leg 9 and a longitudinal moving oil cylinder 5; the track beam 1 is arranged on a bridge deck 8, and the walking pushing seat 4 is detachably connected with the track beam 1 and can slide along the top surface of the track beam 1; the front telescopic support leg 6 and the front support leg 7 are respectively arranged in front of the rear telescopic support leg 3 and the rear support leg 9 along the advancing direction of the bridge deck crane; the tops of the front telescopic supporting leg 6 and the rear telescopic supporting leg 3 are respectively and fixedly connected with the bridge deck crane 2, and the bottoms of the front telescopic supporting leg and the rear telescopic supporting leg are respectively and slidably connected with the track beam 1; the tops of the front supporting leg 7 and the rear supporting leg 9 are respectively fixedly connected with the bridge deck crane 1, and the bottoms of the front supporting leg and the rear supporting leg are respectively supported on the bridge deck 8; the movable end of the longitudinal moving oil cylinder 5 is hinged with the front telescopic supporting leg 6, and the fixed end of the longitudinal moving oil cylinder is hinged with the walking pushing seat 4.
In this technical solution, the front telescopic leg 6, the front leg 7, the rear telescopic leg 3 and the rear leg 9 alternately complete the conversion of the bridge deck crane supporting position from the track beam 1 to the bridge deck, and the walking of the bridge deck crane is realized by the longitudinal moving cylinder 5. Specifically, the method comprises the following steps:
s1, firstly synchronously contracting the front telescopic supporting leg 6 and the rear telescopic supporting leg 3 to drive the track beam 1 to move upwards to leave the bridge deck, and supporting the front supporting leg 7 and the rear supporting leg 9 on the bridge deck, wherein the bridge deck crane is supported on the bridge deck through the front supporting leg 7 and the rear supporting leg 9;
s2, fixedly connecting the walking pushing seat 4 with the track beam 1, and contracting the longitudinal movement oil cylinder 5 to drive the track beam 1 to move forwards;
s3, releasing the fixed connection between the walking pushing seat 4 and the track beam 1, and extending the longitudinal movement oil cylinder 5 to drive the walking pushing seat 4 to move backwards relative to the track beam 1;
s4, repeating the steps S2 and S3 until the track beam 1 moves forward to a designated position, fixing the walking pushing seat 4 and the track beam 1, and enabling the longitudinal movement oil cylinder 5 to be in a contracted state;
s5, synchronously extending the front telescopic supporting leg 6 and the rear telescopic supporting leg 3 to drive the track beam 1 to move downwards to the bridge floor, wherein the bridge floor crane is supported on the track beam 1 through the front telescopic supporting leg 6 and the rear telescopic supporting leg 3;
s6, extending the longitudinal moving oil cylinder 5, and driving the bridge deck crane to move forwards through the front telescopic supporting leg 6; then, the fixed connection between the walking pushing seat 4 and the track beam 1 is released, the longitudinal movement oil cylinder 5 is contracted, the walking pushing seat 4 is driven to move forwards relative to the track beam 1, and then the walking pushing seat 4 and the track beam 1 are fixed;
s7, repeating the step S6 until the bridge deck crane moves forward to the designated position.
In the process, the bridge deck crane 2 is supported on the beam surface 8 through the front supporting leg 7 and the rear supporting leg 9 in the beam section erection state; when in a walking state, the front telescopic support legs 6 and the rear telescopic support legs 3 are supported on the track beam 1, so that the bearing capacity of the bridge deck crane 2 is improved, and the safety and stability during walking are enhanced. When in use, the position of the walking pushing seat 4 can be adjusted according to the requirement, and the longitudinal movement oil cylinders 5 with different strokes are adapted. The walking mechanism of the large-tonnage bridge crane can be provided with two or more groups according to the structure of the bridge crane 2, and referring to fig. 2 to 3, in this embodiment, the walking mechanism of the large-tonnage bridge crane is symmetrically provided with two groups by taking the center line of the bridge as the center.
In another embodiment, as shown in fig. 5 and 6, the top surface of the track beam 1 is provided with a plurality of slots 11 spaced apart along the length direction thereof.
The walking pushing seat 4 comprises a longitudinally moving sliding seat 41 which is in sliding connection with the track beam 1 and a stop block 42 which is hinged with the longitudinally moving sliding seat 41, wherein the stop block 42 can be inserted into the corresponding slot 11, and the width of the slot 11 is larger than that of the stop block 42; the stop block 42 is provided with a stop shaft 43 on both sides, and the stop shaft 43 is inserted into the longitudinally moving slide.
In the above technical solution, the stop block 42 is inserted into the corresponding slot 11, and the stop shafts 43 are disposed at two sides of the stop block 42 to limit the rotation of the stop block 42, so as to fix the walking pushing seat 4 and the track beam 1. When the traveling pushing base 4 needs to be moved, the stop shafts 43 on both sides are pulled out, and when the longitudinally moving sliding base 41 slides along the track beam 1, the stop block 42 rotates when touching the edge of the slot 11, and at this time, the stop block 42 rotates out of the current slot 11 because the width of the slot 11 is larger than the width of the stop block 42.
In another technical scheme, referring to fig. 6, the front telescopic supporting leg 6 and the rear telescopic supporting leg 3 have the same structure, and each of them includes an outer sleeve 31, an inner sleeve 33 and a jacking cylinder 32, the outer sleeve 31 is sleeved on the inner sleeve 32, the top of the outer sleeve 31 is fixedly connected with the bridge deck crane 2, and the bottom of the inner sleeve 33 is slidably connected with the track beam 1; the movable end of the jacking cylinder 32 is hinged with the outer sleeve 31, and the fixed end of the jacking cylinder is hinged with the inner sleeve 33.
In the above technical solution, the outer sleeve 31 is driven to move relative to the inner sleeve 33 by the jacking cylinder 32, so as to implement the extension and retraction of the front extension leg 6 and the rear extension leg 3. In actual use, a plurality of the jacking cylinders 32 can be flexibly arranged according to the jacking force requirement.
Referring to fig. 4, the sliding connection between the front telescopic leg 6, the rear telescopic leg 3, the longitudinally moving sliding seat 41 and the track beam 1 may be achieved on the track beam 1 through a clamp, specifically, the front telescopic leg 6, the rear telescopic leg 3, and the longitudinally moving sliding seat 41 are symmetrically provided with L-shaped sliding blocks 331 on two sides of the bottom of the track beam 1, the cross section of the track beam is in an i-shaped structure, and the upper end surfaces of the horizontal portions of the two sliding blocks 331 are respectively in contact connection with the bottom surfaces on two sides of the top plate of the track beam 1, so that the track beam 1 can be supported while the front telescopic leg 6, the rear telescopic leg 3, and the longitudinally moving sliding seat 41 slide relatively with the track beam 1, and the track beam 1 can be synchronously driven to rise when the front telescopic leg 6 and the rear telescopic leg 3 shrink.
In another technical solution, as shown in fig. 7, the front leg 7 is a turnover leg, and includes a front leg main body 73, a first screw 72, a first supporting seat 71, a connecting rod 74, and a turnover cylinder 76; the top of the front supporting leg main body 73 is detachably connected with the bridge deck crane 2, the bottom of the front supporting leg main body is connected with the first supporting seat 71 through the first screw rod 72, and the first supporting seat 71 is supported on the bridge deck 8; one end of the connecting rod 74 is hinged with the bridge deck crane 2, and the other end is hinged with the front landing leg main body 73; the fixed end of the turning cylinder 76 is hinged to the bridge deck crane 2, and the movable end of the turning cylinder is hinged to the front support leg main body 73.
In this solution, the front leg 7 is driven to rotate around the hinge point of the connecting rod 74 and the bridge deck crane 2 by contracting the overturning cylinder 76, so as to avoid the permanent structure on the bridge during the advancing process of the bridge deck crane 2. In actual use, considering the setting angle of the overturning cylinder 76, a hinged support 75 may be disposed on the bridge deck crane 2, so that the fixed end of the overturning cylinder 73 is connected with the hinged support 75, so as to meet the overturning angle requirement of the front supporting leg 7. The length of the front leg 7 can be finely adjusted by the first screw 72 so that the front leg 7 can be stably supported on the deck 8. Specifically, one end of the first screw rod 72 is fixedly connected or hinged to the top of the first supporting seat 71, the other end of the first screw rod is in threaded connection with the front supporting leg main body 73, the first screw rod 72 is rotated to adjust the length of the first screw rod extending into the front supporting leg main body 73, and then fine adjustment of the length of the front supporting leg 7 is achieved.
In another technical solution, as shown in fig. 8, the rear leg 9 includes a rear leg column 93, a second screw rod 92 and a second supporting seat 91, wherein the top of the rear leg main body 93 is fixedly connected with the bridge deck crane 2, the bottom of the rear leg main body is connected with the second supporting seat 91 through the second screw rod 92, and the bottom of the second supporting seat 92 is supported on the bridge deck. The rear support leg 9 is similar to the front support leg 7 in structure, and the length of the rear support leg 9 can be finely adjusted through the second screw rod 92, so that the rear support leg 9 can be stably supported on the bridge deck 8.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (6)
1. The utility model provides a walking running gear of large-tonnage bridge deck loop wheel machine which characterized in that includes: the device comprises a track beam, a walking pushing seat, a front telescopic supporting leg, a front supporting leg, a rear telescopic supporting leg, a rear supporting leg and a longitudinal moving oil cylinder; the track beam is arranged on the bridge deck, and the walking pushing seat is detachably connected with the track beam and can slide along the top surface of the track beam; the front telescopic support leg and the front support leg are respectively arranged in front of the rear telescopic support leg and the rear support leg along the advancing direction of the bridge deck crane; the tops of the front telescopic supporting leg and the rear telescopic supporting leg are respectively fixedly connected with the bridge deck crane, and the bottoms of the front telescopic supporting leg and the rear telescopic supporting leg are respectively connected with the track beam in a sliding manner; the tops of the front supporting leg and the rear supporting leg are respectively fixedly connected with the bridge deck crane, and the bottoms of the front supporting leg and the rear supporting leg are respectively supported on the bridge deck; the movable end of the longitudinal moving oil cylinder is hinged with the front telescopic supporting leg, and the fixed end of the longitudinal moving oil cylinder is hinged with the walking pushing seat.
2. The walking mechanism of a large tonnage deck crane according to claim 1, wherein the top surface of the rail beam is provided with a plurality of slots spaced apart along the length direction thereof.
3. The walking mechanism of the large-tonnage bridge crane according to claim 2, wherein the walking pushing seat comprises a longitudinally moving sliding seat which is in sliding connection with the track beam and a stop block hinged with the longitudinally moving sliding seat, the stop block can be inserted into the corresponding slot, and the width of the slot is larger than that of the stop block; and the two sides of the stop block are provided with stop shafts which are inserted into the longitudinal moving sliding seat.
4. The walking mechanism of the large-tonnage bridge crane according to claim 1, wherein the front telescopic supporting leg and the rear telescopic supporting leg have the same structure and comprise an outer sleeve, an inner sleeve and a jacking cylinder, the outer sleeve is sleeved on the inner sleeve, the top of the outer sleeve is fixedly connected with the bridge crane, and the bottom of the inner sleeve is in sliding connection with the track beam; the movable end of the jacking cylinder is hinged with the outer sleeve, and the fixed end of the jacking cylinder is hinged with the inner sleeve.
5. The walking mechanism of the large-tonnage bridge crane according to claim 1, wherein the front landing leg is a turnover landing leg and comprises a front landing leg main body, a first screw rod, a first supporting seat, a connecting rod and a turnover oil cylinder; the top of the front supporting leg main body is detachably connected with the bridge deck crane, the bottom of the front supporting leg main body is connected with the first supporting seat through the first screw rod, and the first supporting seat is supported on the bridge deck; one end of the connecting rod is hinged with the bridge deck crane, and the other end of the connecting rod is hinged with the front landing leg main body; the fixed end of the overturning oil cylinder is hinged with the bridge deck crane, and the movable end of the overturning oil cylinder is hinged with the front landing leg main body.
6. The walking mechanism of the large-tonnage bridge crane according to claim 1, wherein the rear supporting leg comprises a rear supporting leg column body, a second screw rod and a second supporting seat, the top of the rear supporting leg main body is fixedly connected with the bridge crane, the bottom of the rear supporting leg main body is connected with the second supporting seat through the second screw rod, and the bottom of the second supporting seat is supported on the bridge deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320232331.2U CN219386041U (en) | 2023-02-16 | 2023-02-16 | Walking type travelling mechanism of large-tonnage bridge deck crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320232331.2U CN219386041U (en) | 2023-02-16 | 2023-02-16 | Walking type travelling mechanism of large-tonnage bridge deck crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219386041U true CN219386041U (en) | 2023-07-21 |
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ID=87196818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320232331.2U Active CN219386041U (en) | 2023-02-16 | 2023-02-16 | Walking type travelling mechanism of large-tonnage bridge deck crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219386041U (en) |
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2023
- 2023-02-16 CN CN202320232331.2U patent/CN219386041U/en active Active
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