CN220725089U - Steel protects a hoisting device - Google Patents
Steel protects a hoisting device Download PDFInfo
- Publication number
- CN220725089U CN220725089U CN202322335173.6U CN202322335173U CN220725089U CN 220725089 U CN220725089 U CN 220725089U CN 202322335173 U CN202322335173 U CN 202322335173U CN 220725089 U CN220725089 U CN 220725089U
- Authority
- CN
- China
- Prior art keywords
- seat disc
- disc
- steel casing
- component force
- jack
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 51
- 239000010959 steel Substances 0.000 title claims abstract description 51
- 210000001503 joint Anatomy 0.000 claims abstract description 7
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 239000004575 stone Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model belongs to a steel pile casing lifting device, which comprises a jack, wherein a lifting chassis is composed of a first semicircular ring-shaped seat disc and a second semicircular ring-shaped seat disc which are mutually hinged at one end through a hinge, bolt butt joint lugs with bolt holes are arranged at the other ends of the first semicircular ring-shaped seat disc and the second semicircular ring-shaped seat disc, a plurality of mounting grooves which are vertically penetrated are longitudinally arranged at intervals, each mounting groove is axially connected with the front end of the middle upper part of a swing arm through an eccentric shaft, a clamping block is arranged at the front end of the upper part of the swing arm, through holes which are penetrated with the mounting grooves are formed in the first semicircular ring-shaped seat disc and the second semicircular ring-shaped seat disc at the front end of the clamping block, the clamping blocks are positioned in the through holes and correspond to the outer walls of steel pile casings at corresponding parts, a top disc is arranged at the lower end of the swing arm, the lower end of the top disc is propped against a telescopic rod of the jack, and the bottom surface of the lower end of the jack is propped against the upper end surface of a corresponding component force base. The utility model can effectively lift and pull out the underground steel casing, and has the advantages of simple structure, low manufacturing cost, easy installation and good use effect.
Description
Technical Field
The utility model belongs to a steel casing lifting device.
Background
The bridge underbeam structure in the bridge construction field is mostly pile group foundation + cushion cap + solid pier stud, and pile group foundation (pile foundation for short) is the drilling rig soon now, and a vibrating hammer cooperates with the steel pile casing to carry out the excavation of each pile foundation and draws the hole, and the degree of depth of pile foundation hole is determined according to bridge bearing weight, and the two are in direct proportion, selects harder layer or stratum as pile end bottom bearing layer usually. The pile foundation length is 15-42 m, and the diameter of the pile foundation hole is 120-240 cm. After the steel pile casing is perforated, concrete is poured into the steel pile casing, after the concrete is poured into the steel pile casing for initial setting, the underground steel pile casing is pulled out by the rotary drilling rig lifting device, and after the concrete is solidified, single Kong Zhuangji columns are formed, and a plurality of single Kong Zhuangji column group pile foundations are distributed at intervals.
Under special geological conditions, such as complicated river basin geological conditions, thick pebble layer and large-diameter boulders, the pulling of the underground steel casing by the rotary drilling rig lifting device is easy to cause the failure of the drawing of the casing.
Disclosure of Invention
The utility model aims to design a steel casing lifting device which can effectively lift a steel casing pulled out of the ground and has the advantages of simple structure, low manufacturing cost, easiness in installation and good use effect.
The utility model relates to a steel pile casing lifting device, which comprises a jack, wherein a lifting chassis is composed of a first semicircular annular seat disc and a second semicircular annular seat disc which are mutually hinged at one end through a hinge, bolt butt joint lugs with bolt holes are arranged at the other ends of the first semicircular annular seat disc and the second semicircular annular seat disc, a plurality of mounting grooves which are vertically penetrated are longitudinally arranged at intervals, each mounting groove is axially connected with the front end of the middle upper part of a swing arm through an eccentric shaft, a clamping block is arranged at the front end of the upper part of the swing arm, through holes which are penetrated with the mounting grooves are formed in the first semicircular annular seat disc and the second semicircular annular seat disc at the front end of the clamping block, the clamping blocks are positioned in the through holes and correspond to the outer walls of steel pile casings at corresponding parts, a top disc is arranged at the lower end of the swing arm, the lower end of the top disc is propped against a telescopic rod of the jack, and the bottom surface of the lower end of the jack is propped against the upper end surface of a corresponding component force base.
As a further description of the above technical solution: the front end face of the clamping block is a concave cambered surface which is matched with the shape of the outer wall of the steel casing.
As a further description of the above technical solution: the steel pile casing is positioned in the component force base, and the center point of the component force base coincides with the center point of the steel pile casing.
As a further description of the above technical solution: the component force base is a cast iron base or a concrete base.
As a further description of the above technical solution: the first semicircular seat disc and the second semicircular seat disc are clamped on the outer wall of the steel casing at the upper end of the component force base, the bolts penetrate through bolt holes in the two bolt butt joint lugs, and the first semicircular seat disc and the second semicircular seat disc are clamped on the outer wall of the steel casing at the upper end of the component force base through gaskets and nuts on the bolts.
The utility model has the following beneficial effects:
1. the utility model solves the problem that the self-advancing steel pile casing cannot be pulled out due to insufficient power of the drilling machine in pile foundation construction in complex stratum. The utility model takes the large-grain-size drift stone layer and sandstone as main materials in the stratum of the bridge site area of the main pier, and a large amount of drift stone exists in the bridge site area of the main pier, and the grain size of the drift stone is generally 25.00-45.00cmBetween them, up to 100.00cmAbout 45% by weight and a layer thickness of 3m~15mIn the experimental application, the problem that the self-advancing steel casing cannot be pulled out is solved. Compared with the traditional method, the method has the advantages of 40% shortening of pile finishing time, 30% reduction of cost, good pile finishing quality and good economic benefit.
2. The utility model has the advantages of simple structure, low manufacturing cost, easy installation, easy operation, time and labor saving, high construction efficiency and good use effect.
Drawings
FIG. 1 is a schematic view of the construction state of the present utility model;
FIG. 2 is a schematic view of the cross-sectional structure A-A in FIG. 1.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and in order to make the technical means, the creation characteristics, the achievement purposes and the effects achieved by the present utility model easy to understand, the present utility model will be further described below with reference to the specific embodiments, but the following embodiments are only preferred embodiments of the present utility model, not all. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The construction methods in the following examples are conventional methods unless otherwise specified, and the materials, apparatuses, devices, etc. used in the following examples are commercially available unless otherwise specified.
Example 1: as shown in fig. 1 to 2, a steel casing lifting device comprises a jack 3, and a lifting chassis 2 is composed of a first semicircular annular seat plate 27 and a second semicircular annular seat plate 29 hinged to each other at one end by a hinge 22. The other ends of the first semicircular seat disk 27 and the second semicircular seat disk 29 are provided with bolt butt joint lugs 20 with bolt holes, a plurality of mounting grooves 21 which are vertically penetrated are longitudinally arranged at intervals on the first semicircular seat disk and the second semicircular seat disk, and the middle upper front end of the swing arm 24 is axially connected in each mounting groove 21 through an eccentric shaft 23, so that the swing arm can move backwards a clamping block on the upper part of the swing arm under the action of the eccentric shaft under the condition of losing the external jacking force of the lower end of the swing arm, otherwise, the clamping block on the upper part of the swing arm can move forwards.
The upper front end of the swing arm is provided with a clamping block 28, and the front end surface of the clamping block is a concave cambered surface matched with the shape of the outer wall of the steel casing, so that the clamping block can be propped against the corresponding outer wall of the steel casing. The first semicircular seat plate and the second semicircular seat plate at the front ends of the clamping blocks 28 are provided with through holes communicated with the mounting grooves, the clamping blocks are positioned in the through holes and correspond to the outer walls of the steel casing 5 of the corresponding parts, the lower end part of the swinging arm 24 is provided with a top plate, the lower end of the top plate is propped against the telescopic rod 4 of the jack 3, and the bottom surface of the lower end of the jack 3 is propped against the upper end surface of the corresponding component force base 1.
The steel pile casing 5 is positioned in the component force base 1, and the center point of the component force base coincides with the center point of the steel pile casing.
The component force base 1 is a cast iron base or a concrete base, and the component force base acts on the pressure of each jack of the component force on the ground.
The lifting jack is controlled by the synchronous lifting device, and the synchronous lifting device is a prior art, so that the description is not repeated.
The first semicircular seat disk and the second semicircular seat disk are clamped on the outer wall of the steel casing at the upper end of the component force base, the bolts 25 penetrate through bolt holes in the two bolt butt joint lugs 20, and the first semicircular seat disk and the second semicircular seat disk are clamped on the outer wall of the steel casing at the upper end of the component force base through gaskets and nuts 26 on the bolts.
When the device is used, the component force base is arranged on the ground exposed out of the outer wall of the ground steel casing, and the center point of the component force base is overlapped with the center point of the steel casing. The auxiliary lifting chassis is installed, namely the first semicircular annular seat disk and the second semicircular annular seat disk are clamped on the outer wall of the steel casing at the upper end of the component force base, and pass through bolt holes on two bolt butt lugs through bolts, and clamp the first semicircular annular seat disk and the second semicircular annular seat disk on the outer wall of the steel casing at the upper end of the component force base through gaskets and nuts on the bolts. And a jack is respectively arranged on the lower end of each swing arm top disc and the upper end surface of the corresponding component force base, the lower end of the top disc is propped against a telescopic rod of the jack, the bottom surface of the lower end of the jack is propped against the upper end surface of the corresponding component force base, and each jack is a synchronous lifting jack controlled by a synchronous lifting device.
And starting each jack, enabling the telescopic rod of each jack to prop up the jacking disc at the lower end of each swing arm, clamping the outer wall of the steel casing at the corresponding position by the clamping block at the upper end of each swing arm under the action of the eccentric swing arm shaft, and tightly holding the outer wall of the steel casing by the jacking force of the telescopic rod of the jack to rise simultaneously, so that the steel casing pressed into the ground is pulled up by the lifting force of the jack positioned on the component force base and the lifting chassis.
When the lifting chassis moves downwards, the nuts of the fastening bolts on the butt joint lugs are loosened, the first semicircular seat plate and the second semicircular seat plate are in a loose state with the outer wall of the steel casing at the upper end of the component force base, the telescopic rods of the jacks are contracted, and the lifting chassis can move downwards synchronously along with the descending of the telescopic rods; otherwise, the telescopic rods of the jacks are lifted to jack the top disc at the lower end of each swing arm, and the working state of the steel casing pressed into the ground is pulled out upwards for lifting the lifting force of the chassis.
The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. The utility model provides a steel protects a hoisting device, includes jack, its characterized in that: the lifting chassis is composed of a first semicircular seat disc and a second semicircular seat disc which are mutually hinged at one end through a hinge, bolt butt joint lugs with bolt holes are arranged at the other ends of the first semicircular seat disc and the second semicircular seat disc, a plurality of mounting grooves which are vertically penetrated are longitudinally arranged at intervals, the inner circumference of each mounting groove is connected with the front end of the middle upper part of a swing arm through an eccentric shaft, a clamping block is arranged at the front end of the upper part of the swing arm, through holes which are penetrated with the mounting grooves are formed in the first semicircular seat disc and the second semicircular seat disc at the front end of the clamping block, the clamping block is positioned in the through holes and corresponds to the outer wall of a steel protective cylinder of the corresponding part, a top disc is arranged at the lower end part of the swing arm, the lower end of the top disc is propped against a telescopic rod of a jack, and the bottom surface of the lower end of the jack is propped against the upper end surface of the corresponding component force base.
2. The steel casing lifting device according to claim 1, wherein the front end surface of the clamping block is a concave arc surface which is matched with the shape of the outer wall of the steel casing.
3. The steel casing lifting device of claim 1, wherein the steel casing is located in a component force base, and a center point of the component force base coincides with a center point of the steel casing.
4. The steel casing lifting device of claim 1, wherein the component force base is a cast iron base or a concrete base.
5. The steel casing lifting device according to claim 1, wherein the first semicircular seat disc and the second semicircular seat disc are clamped on the outer wall of the steel casing at the upper end of the component force base, the bolts penetrate through bolt holes in the two bolt butt lugs, and the first semicircular seat disc and the second semicircular seat disc are clamped on the outer wall of the steel casing at the upper end of the component force base through gaskets and nuts on the bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322335173.6U CN220725089U (en) | 2023-08-30 | 2023-08-30 | Steel protects a hoisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322335173.6U CN220725089U (en) | 2023-08-30 | 2023-08-30 | Steel protects a hoisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220725089U true CN220725089U (en) | 2024-04-05 |
Family
ID=90499875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322335173.6U Active CN220725089U (en) | 2023-08-30 | 2023-08-30 | Steel protects a hoisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220725089U (en) |
-
2023
- 2023-08-30 CN CN202322335173.6U patent/CN220725089U/en active Active
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| GR01 | Patent grant |