CN113120750B - A hoist device for subway construction - Google Patents
A hoist device for subway construction Download PDFInfo
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- CN113120750B CN113120750B CN202110497922.8A CN202110497922A CN113120750B CN 113120750 B CN113120750 B CN 113120750B CN 202110497922 A CN202110497922 A CN 202110497922A CN 113120750 B CN113120750 B CN 113120750B
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- rod
- strip
- movable plate
- shell
- telescopic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
- B66C1/54—Internally-expanding grippers for handling hollow articles
- B66C1/56—Internally-expanding grippers for handling hollow articles for handling tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention provides a hoisting device for subway construction, which is used for hoisting a protective cylinder for subway construction and comprises: the supporting strips are vertically arranged and are arranged on the same circumference at equal angles, and each supporting strip can move back and forth along the diameter direction of the circumference where the supporting strip is arranged so as to be tightly supported on the inner wall of the pile casing or separated from the inner wall of the pile casing; a telescopic structure for driving the back and forth movement of the tightening strip. The hoisting device can realize hoisting of the pile casing so as to realize movement of the pile casing.
Description
Technical Field
The invention relates to the field of hoisting of hollow main body structures, in particular to a hoisting device for subway construction.
Background
With the development of society, people develop and utilize underground space more and more widely, subways play an important role in modern society as transportation means, a subway main line consists of an interval and stations, the stations are divided into an underground station and an overground station, the interval consists of overhead bridges, U-shaped grooves, a ground part, an underground tunnel and the like, when an underground station and a U-shaped groove are built, a foundation pit needs to be excavated, an underground enclosure structure needs to be built before the foundation pit is excavated, in the current construction technology, the scheme of using cast-in-situ bored piles and the like to build the underground enclosure structure is a common construction technology, before drilling construction, a pile casing is required to be embedded, the pile casing is generally a hollow main body structure with a larger diameter, so that the hollow main body structures with different inner diameters are required to be prefabricated by people aiming at technical problems of stations and the like with different geological conditions and different burial depths, the pile casing is transversely hoisted in the traditional hoisting mode, the method is particularly troublesome when the pile casing is placed in a foundation pit and the pile casing is directly supported from the middle part of the pile casing to realize the hoisting work, however, the method has the problems that the protective cylinder is damaged due to overlarge supporting force in the hoisting work, the protective cylinder slips and falls off when the supporting force is small, the potential safety hazard is large, therefore, a hoisting device for subway construction is needed, when the device hoists the pile casing, the inner supporting structure is used for assisting work to ensure that the protective cylinder cannot incline under the condition of hoisting, thereby the condition of protecting a landing and appear protecting a firm condition inadequately to protecting a section of thick bamboo bracketing in solving traditional hoist and mount mode, realize quick steady completion to protecting the work of filling and putting of a section of thick bamboo.
Disclosure of Invention
In order to solve the technical problem, the invention adopts the following technical scheme:
the utility model provides a hoist device for subway construction for hoist and mount to protecting a section of thick bamboo that subway construction used, include:
the supporting strips are vertically arranged and are arranged on the same circumference at equal angles, and each supporting strip can move back and forth along the diameter direction of the circumference where the supporting strip is arranged so as to be supported on the inner wall of the pile casing or be separated from the inner wall of the pile casing;
a telescopic structure for driving the back and forth movement of the tightening strip; it is characterized in that the preparation method is characterized in that,
the telescopic structure comprises:
the support comprises three vertically arranged cylindrical rods and two triangular plates, the triangular plates are equilateral triangles, three corners of each triangular plate are respectively aligned in the vertical direction, and two ends of each cylindrical rod are respectively connected to the corresponding corners of the two triangular plates;
the telescopic assemblies are arranged on the cylindrical rod and are in two groups and are symmetrical up and down, the telescopic assemblies on the upper side are connected to the corresponding position, close to the upper end, of the abutting strip, and the telescopic assemblies on the lower side are connected to the corresponding position, close to the lower end, of the abutting strip.
Preferably, each set of said telescopic assemblies comprises:
the fixing plate is in an equilateral triangle shape and is immovably fixed on the cylindrical rod;
the movable plate is in an equilateral triangle shape, the fixed plate is closer to the middle position of the cylindrical rod than the movable plate, the movable plate can slide up and down relative to the cylindrical rod, three angles of the movable plate are respectively arranged on the three cylindrical rods, the centers of the fixed plate and the movable plate penetrate through a first axis, the first axis extends vertically and penetrates through the circle centers of the circumferences where the plurality of abutting strips are located, and when the movable plate is viewed in a overlooking mode, the included angle between the orientation of each angle of the fixed plate and the orientation of the adjacent angle of the movable plate is 30 degrees.
Preferably, the telescopic assembly further comprises:
one end of each first connecting rod is hinged to each corner of the fixing plate through a second hinge joint, one end of each first connecting rod, which is far away from the fixing plate, is connected with the corresponding abutting strip through a sliding block, a sliding groove extending up and down is formed in the abutting strip, and the sliding block can be clamped in the sliding groove and can move up and down relative to the abutting strip;
one end of each of the three second connecting rods is hinged to the middle position of the three sides of the movable plate through a third hinged joint, and the other end of each of the three second connecting rods is hinged to the corresponding first connecting rod.
Preferably, each set of telescoping assemblies further comprises a locking assembly comprising:
the guide rod extends vertically, one end of the guide rod is fixed on the movable plate, the other end of the guide rod penetrates through the fixed plate, and the guide rod can slide up and down relative to the fixed plate;
a rack provided on a side surface of the guide bar and extending up and down, the rack occupying a part on the circumference of the guide bar 34, and the other part serving as a guide;
the locking block is supported on one side, facing the movable plate, of the fixed plate, the locking block is of an arc structure matched with the surface of the guide rod, a plurality of first teeth which are vertically arranged are arranged on one side, facing the guide rod, of the locking block, and the first teeth are meshed with the rack.
Preferably, a side surface of each tooth on the rack facing away from the movable plate is a plane perpendicular to the axis of the guide bar, and a side surface of the first tooth facing toward the movable plate is a plane perpendicular to the axis of the guide bar.
Preferably, still include first shell, the extending structure except that the one end of first connecting rod stretches out from the shell, other structures of extending structure all are located in first shell the position department that corresponds to three angles of fixed plate 21 is provided with the bar hole that extends from top to bottom on the first shell, the one end of keeping away from the fixed plate of first connecting rod is followed the bar hole stretches out the top of first shell is provided with the couple.
Preferably, the supporting mechanism is arranged on the bottom of the telescopic structure and comprises:
the second shell is arranged at the lower end of the first shell, the second shell and the first shell are coaxially arranged, a plurality of rectangular openings are arranged at the position, close to the lower end, of the second shell, the rectangular openings are arranged at equal angles relative to the axis of the second shell, and a hinge rod is arranged at the position of each rectangular opening;
one ends of the plurality of bearing rods are hinged to the same linkage disc, the plurality of bearing rods are arranged in an equal angle mode relative to the axis of the second shell, the axis of the linkage disc is collinear with the axis of the second shell, the number of the bearing rods is the same as that of the rectangular openings, a strip-shaped groove is formed in the portion between the two ends of each bearing rod, and the hinge rods penetrate through the strip-shaped grooves;
and the driving structure is arranged in the second shell and used for driving the linkage disc to move back and forth along the axis of the linkage disc.
The invention also provides a hoisting method for subway construction, which is used for hoisting the casing for subway construction, and the hoisting device comprises the following steps:
the method comprises the following steps: hanging the hoisting device on a crane through a hook;
step two: moving the hoisting device to the bottom of the hoisting cylinder by a crane;
step three: the telescopic structure enables the abutting strip to abut against the inner wall of the hanging cylinder with a first preset force;
step four: the bearing rod extends out of the second shell to the bottom of the hanging cylinder, the telescopic structure moves downwards for a certain distance in the process of extending out of the bearing rod, and the locking structure locks the bearing rod after the bearing rod moves to a preset position;
step five: the telescopic structure enables the abutting strip to abut against the inner wall of the hanging cylinder with a second preset force, the second preset force is larger than the first preset force, and the locking structure locks the telescopic structure after the telescopic structure moves to a preset position;
step six: the crane moves the hoisting drum to a specified position;
step seven: the locking structure is unlocked, the bearing rod retracts, and the telescopic structure enables the abutting strip to be separated from the inner wall of the hanging cylinder;
step eight: the crane takes the hoisting device out of the hoisting cylinder.
Compared with the prior art, the invention has the following beneficial effects:
the elastic structure is used for tightly abutting the abutting strip against the inner wall of the hanging cylinder, so that the hanging cylinder can be hung; meanwhile, the supporting structure is arranged, and the supporting strip can be prevented from sliding relative to the inner wall of the hanging cylinder through the supporting structure, so that the hanging cylinder is prevented from falling off; extending structure and bearing structure are last to be provided with locking structure, and after extending structure and bearing structure reached the position department of needs, can lock through locking structure like this, avoid extending structure and bearing structure at the in-process automatic withdrawal that hangs a section of thick bamboo and remove.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the stretching device, the holding device and the lifting device of the present invention;
FIG. 3 is a perspective view of the stretching device and the tightening device of the present invention;
FIG. 4 is a perspective view of the retraction assembly of the present invention;
FIG. 5 is a perspective view of a portion of the mechanism of the extension device of the present invention;
FIG. 6 is a perspective view of the holding device of the present invention;
FIG. 7 is a perspective view of the support device of the present invention;
FIG. 8 is a physical diagram of the support device of the present invention with the housing removed;
FIG. 9 is a block diagram of the locking structure of the present invention;
fig. 10 is a structural view of the locking block of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art.
Referring to fig. 1 to 10, a hoist device for subway construction for hoist a casing that subway construction used, including a plurality of supporting strip 27 and extending structure 1, it is a plurality of supporting strip 27 is vertical to be set up to on same circumference of equiangular setting, every supporting strip 27 can be along its place the direction round trip movement of the diameter of circumference is in order to support tightly protect the inner wall of casing or break away from protect the inner wall of casing, supporting strip 27's round trip movement is driven by extending structure 1.
The telescopic structure 1 comprises a support 17 and telescopic assemblies 19 arranged on the support 17, wherein the telescopic assemblies 19 are provided with two groups and are vertically symmetrical.
The support 17 comprises three vertically arranged cylindrical rods and two triangular plates, the triangular plates are equilateral triangles, three corners of each triangular plate are respectively aligned in the vertical direction, and two ends of each cylindrical rod are respectively connected to the corresponding corners of the two triangular plates.
Each set of the telescopic assemblies 19 includes a fixed plate 21 and a movable plate 22, the fixed plate 21 and the movable plate 22 are both in an equilateral triangle shape, the fixed plate 21 is closer to the middle position of the cylindrical rod than the movable plate 22, the fixed plate 21 is immovably supported on the cylindrical rod, and the movable plate 22 can slide up and down relative to the cylindrical rod. Specifically, three angles of the movable plate 22 are respectively arranged on three cylindrical rods, and centers of the fixed plate 21 and the movable plate 22 pass through a first axis, the first axis extends vertically, and the first axis passes through a circle center of a circle on which the plurality of tightening bars 27 are located. When viewed from above, each corner of the fixed plate 21 faces at an angle of 30 ° with respect to the corner of the adjacent movable plate 22.
The telescopic assembly 19 further comprises three first connecting rods 25 and three second connecting rods 26, one ends of the three first connecting rods 25 are respectively hinged to three corners of the fixing plate 21 through second hinges 23, and the other ends of the three first connecting rods 25 are respectively hinged to corresponding tightening strips 27. The three second connecting rods 26 are respectively hinged at the middle positions of three edges of the movable plate 22 through third hinge joints 24, and the other ends of the three second connecting rods 26 are respectively hinged with the corresponding first connecting rods 25. When the movable plate 22 moves up and down, the second connecting rod 26 can be driven to move, the second connecting rod 26 can drive the first connecting rod 25 to move, and the first connecting rod 25 drives the abutting strip 27 to move along a direction close to or far away from the inner wall of the pile casing.
Further, a first electric push rod 18 is arranged on the fixed plate 21, a housing of the first electric push rod 18 is fixed on the fixed plate 21, a telescopic rod of the first electric push rod 18 extends up and down, and a free end of the telescopic rod is connected with a corresponding movable plate 22, the movable plate 22 can be driven to move up and down through the first electric push rod 18, and the first connecting rod 25 can be driven to swing in the process of moving up and down of the movable plate 22. When the two sets of telescopic assemblies 19 work simultaneously, the tightening strips 27 can be driven to move back and forth in parallel along the direction far away from or close to the axis of the pile casing. The first electric push rod 18 can be replaced by an air cylinder or a hydraulic cylinder.
Further, each set of telescopic assemblies 19 further comprises a locking assembly, the locking assembly 19 comprises a guide rod 34 extending vertically, one end of the guide rod 34 is fixed on the movable plate 22, the other end of the guide rod 34 penetrates through the fixed plate 21, the guide rod 34 can slide up and down relative to the fixed plate 21, a rack 39 extending up and down is arranged on the side surface of the guide rod 34, the rack 39 occupies a part on the circumference of the guide rod 34, and the other part plays a role in guiding. When the movable plate 22 moves up and down, the guide bar 34 moves along with the movable plate 22.
The locking assembly further comprises a locking block 35 supported on one side of the fixed plate 21, which faces the movable plate 22, wherein the locking block 35 is of an arc structure matched with the surface of the guide rod 34, a plurality of first teeth 40 which are vertically arranged are arranged on one side of the locking block 35, which faces the guide rod 34, the first teeth 40 are meshed with the rack 39, and the locking of the up-and-down movement of the guide rod 34 can be realized through the meshing. Further, the surface of one side of each tooth on the rack 39, which is away from the movable plate 22, is a plane perpendicular to the guide rod 34, and the surface of one side of the first tooth 40, which is toward the movable plate 22, is a plane perpendicular to the guide rod 34, so that after the first electric push rod 18 is pushed to the proper position, the rack 39 is engaged with the first tooth 40, and the first electric push rod 18 does not need to apply force any more, and the abutting strip 27 can be ensured to abut against the inner side wall of the casing.
Further, a second electric push rod 36 is arranged on one side of the fixed plate 21, which faces the movable plate 22, an expansion rod of the second electric push rod 36 is connected with the locking block 35, the locking block 35 can be driven by the second electric push rod 36 to move towards the guide rod 34 or away from the guide rod 34, and then the locking block 35 and the guide rod 34 can be locked or unlocked. In practical use, in order to enable the locking block 35 to be smoothly separated from the guide bar 34, the movable plate 22 is slightly pushed by the telescopic rod of the first electric push rod 18, so that the first tooth 40 is separated from one side surface meshed with the tooth on the rack 39, then the telescopic rod of the second electric push rod 36 is retracted, finally the telescopic rod of the first electric push rod 18 is retracted, and finally the abutting strip 27 is separated from the casing.
The hoisting device further comprises a first shell 3, the telescopic structure 1 is located in the first shell 3 except that one end of the first connecting rod 25 extends out of the shell 3, strip-shaped holes 31 extending up and down are formed in the first shell 3 corresponding to three corners of the fixing plate 21, and the first connecting rod 25 is far away from one end of the fixing plate 21 and extends out of the strip-shaped holes 31.
Preferably, a hook 32 is provided at the top end of the first housing 3, and a crane or the like can be hooked by the hook 32.
In particular, the end of the first link 26 remote from the fixed plate 21 is connected to the abutment bar 27 by means of a slider 29. The supporting strip 27 is provided with a sliding groove 28 extending up and down, the sliding block 29 can be clamped in the sliding groove 28 and can move up and down relative to the supporting strip 27, and free extension and retraction of the first connecting rod 26 can be achieved through matching of the sliding block 29 and the sliding groove 28.
Further, a plurality of rubber strips 30 are arranged on the abutting strip 27 on one side contacting with the protective sleeve, and the rubber strips 30 are arranged at equal intervals from top to bottom, so that the rubber strips 30 can play a role in buffering in the abutting process on one hand and can also play a role in increasing friction on the other hand.
The hoisting device further comprises a supporting mechanism 7 arranged at the bottom of the telescopic structure 1. The supporting mechanism 7 comprises a second shell 5 arranged at the lower end of the first shell 3, a third electric push rod 6 arranged in the second shell 5 and a plurality of supporting rods 12, the second shell 5 and the first shell 3 are coaxially arranged, a telescopic rod of the third electric push rod 6 extends downwards and is located on the axis of the second shell 5, a linkage disc 15 is arranged at the lower end of the telescopic rod of the third electric push rod 6, one end of each of the supporting rods 12 is hinged on the linkage disc 15, and the supporting rods 12 are arranged at equal angles relative to the axis of the second shell 5. The position of the second shell 5, which is close to the lower end, is provided with a plurality of rectangular openings 8, the plurality of rectangular openings 8 are arranged at equal angles relative to the axis of the second shell 5, the number of the rectangular openings 8 is the same as that of the support rods 12, a hinge rod (not shown) is arranged at the position of each rectangular opening 8, a strip-shaped groove 13 is arranged on the part between the two ends of each support rod 12, and the hinge rod penetrates through the strip-shaped groove 13, so that when the telescopic rod of the third electric push rod 6 stretches up and down, the plurality of support rods 12 can be driven to swing around the hinge rod. The supporting rod 12 is used for extending to the bottom of the pile casing, supports the pile casing from the position right below the pile casing, and can ensure the hoisting stability when hoisting the pile casing.
Of course, the locking structure may also be provided on the supporting mechanism 7, and when the third electric push rod 6 extends to a certain distance, the locking structure locks, and when the supporting rod 12 needs to be retracted, the locking structure loosens.
Preferably, at least one side surface of the support rod 12 contacting with the casing is a plane, so as to ensure that the support rod 12 can be smoothly retracted.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a hoist device for subway construction for hoist and mount to protecting a section of thick bamboo that subway construction used, include:
the supporting strips are vertically arranged and are arranged on the same circumference at equal angles, and each supporting strip can move back and forth along the diameter direction of the circumference where the supporting strip is arranged so as to be supported on the inner wall of the pile casing or be separated from the inner wall of the pile casing;
a telescopic structure for driving the back-and-forth movement of the tightening strip; it is characterized in that the preparation method is characterized in that,
the telescopic structure comprises:
the support comprises three vertically arranged cylindrical rods and two triangular plates, the triangular plates are equilateral triangles, three corners of each triangular plate are respectively aligned in the vertical direction, and two ends of each cylindrical rod are respectively connected to the corresponding corners of the two triangular plates;
the telescopic assemblies are arranged on the cylindrical rod and are vertically symmetrical, the upper telescopic assembly is connected to the position, close to the upper end, of the corresponding fastening strip, and the lower telescopic assembly is connected to the position, close to the lower end, of the corresponding fastening strip;
each set of telescoping assemblies includes:
the fixing plate is in an equilateral triangle shape and is immovably fixed on the cylindrical rod;
the movable plate is closer to the middle position of the cylindrical rod than the movable plate, the movable plate can slide up and down relative to the cylindrical rod, three angles of the movable plate are respectively arranged on the three cylindrical rods, the centers of the fixed plate and the movable plate penetrate through a first axis, the first axis extends vertically and penetrates through the circle centers of the circumferences where the plurality of abutting strips are located, and when the movable plate is viewed from top, the included angle formed by the orientation of each angle of the fixed plate and the orientation of the adjacent angle of the movable plate is 30 degrees;
the telescoping assembly further comprises:
one end of each first connecting rod is hinged to each corner of the fixing plate through a second hinge joint, one end of each first connecting rod, far away from the fixing plate, is connected with the corresponding abutting strip through a sliding block, a sliding groove extending up and down is formed in the abutting strip, and the sliding block can be clamped in the sliding groove and can move up and down relative to the abutting strip;
one ends of the three second connecting rods are hinged to the middle positions of the three sides of the movable plate through third hinged joints respectively, and the other ends of the three second connecting rods are hinged to the corresponding first connecting rods respectively;
each group of telescopic assemblies further comprises a locking assembly, and the locking assembly comprises:
the guide rod extends vertically, one end of the guide rod is fixed on the movable plate, the other end of the guide rod penetrates through the fixed plate, and the guide rod can slide up and down relative to the fixed plate;
the rack is arranged on the side surface of the guide rod and extends up and down, a part of the rack is occupied on the circumference of the guide rod, and the other part of the rack plays a role in guiding;
the locking block is supported on one side, facing the movable plate, of the fixed plate, the locking block is of an arc structure matched with the surface of the guide rod, a plurality of first teeth which are vertically arranged are arranged on one side, facing the guide rod, of the locking block, and the first teeth are meshed with the rack.
2. The hoisting device for subway construction as claimed in claim 1, wherein a side surface of each tooth on said rack facing away from said movable plate is a plane perpendicular to an axis of said guide bar, and a side surface of said first tooth facing toward said movable plate is a plane perpendicular to an axis of said guide bar.
3. The hoisting device for subway construction as claimed in claim 2, further comprising a first housing, wherein the telescopic structure is located in the first housing except that one end of the first connecting rod extends out of the housing, strip-shaped holes extending up and down are provided at positions on the first housing corresponding to three corners of the fixing plate, one end of the first connecting rod, which is far away from the fixing plate, extends out of the strip-shaped holes, and a hook is provided at the top end of the first housing.
4. The hoisting device for subway construction as claimed in claim 3, further comprising a supporting mechanism disposed on the bottom of the telescopic structure, said supporting mechanism comprising:
the second shell is arranged at the lower end of the first shell, the second shell and the first shell are coaxially arranged, a plurality of rectangular openings are arranged at the position, close to the lower end, of the second shell, the rectangular openings are arranged at equal angles relative to the axis of the second shell, and a hinge rod is arranged at the position of each rectangular opening;
one ends of the plurality of bearing rods are hinged to the same linkage disc, the plurality of bearing rods are arranged in an equal angle mode relative to the axis of the second shell, the axis of the linkage disc is collinear with the axis of the second shell, the number of the bearing rods is the same as that of the rectangular openings, a strip-shaped groove is formed in the portion between the two ends of each bearing rod, and the hinge rods penetrate through the strip-shaped grooves;
and the driving structure is arranged in the second shell and used for driving the linkage disc to move back and forth along the axis of the linkage disc.
5. A hoisting method for subway construction is used for hoisting a pile casing for subway construction, and the hoisting device of claim 4 is adopted, and specifically comprises the following steps:
the method comprises the following steps: hanging the hoisting device on a crane through a hook;
step two: moving a hoisting device to the bottom of the casing by a crane;
step three: the telescopic structure enables the abutting strip to abut against the inner wall of the protective cylinder with a first preset force;
step four: the supporting rod extends out of the second shell to the bottom of the protective cylinder, the telescopic structure moves downwards for a certain distance in the process of extending out of the supporting rod, and the locking structure locks the supporting rod after the supporting rod moves to a preset position;
step five: the telescopic structure enables the abutting strip to abut against the inner wall of the protective cylinder with a second preset force, the second preset force is larger than the first preset force, and the locking structure locks the telescopic structure after the telescopic structure moves to a preset position;
step six: the crane moves the pile casing to a specified position;
step seven: the locking structure is unlocked, the bearing rod retracts, and the telescopic structure enables the abutting strip to be separated from the inner wall of the protective cylinder;
step eight: and the crane takes the hoisting device out of the pile casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110497922.8A CN113120750B (en) | 2021-05-08 | 2021-05-08 | A hoist device for subway construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110497922.8A CN113120750B (en) | 2021-05-08 | 2021-05-08 | A hoist device for subway construction |
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| Publication Number | Publication Date |
|---|---|
| CN113120750A CN113120750A (en) | 2021-07-16 |
| CN113120750B true CN113120750B (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110497922.8A Active CN113120750B (en) | 2021-05-08 | 2021-05-08 | A hoist device for subway construction |
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| CN (1) | CN113120750B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116377183A (en) * | 2023-06-06 | 2023-07-04 | 无锡阳光精机股份有限公司 | Arc guide rail bearing heat treatment device |
| CN116768021B (en) * | 2023-08-24 | 2023-11-07 | 山西宝龙达锻造股份有限公司 | Hoisting equipment special for flange |
| CN117945257B (en) * | 2024-03-27 | 2024-07-16 | 河南科技学院 | Crane lifting device suitable for coiled material conveying |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS60126481U (en) * | 1984-01-31 | 1985-08-26 | 北田 進 | Jig for lifting and transporting heavy objects |
| CN106241597B (en) * | 2016-09-30 | 2018-06-29 | 四川南格尔生物科技有限公司 | A kind of beam barrel wound membrane Filtting device and operational method |
| CN111003634B (en) * | 2019-12-14 | 2020-12-22 | 成都轨道建设管理有限公司 | Umbrella-shaped hoisting device for hoisting hollow cylinder in subway construction |
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| CN113120750A (en) | 2021-07-16 |
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