CN111332962B - Application method of elastic pin shaft for mounting standard section of tower crane - Google Patents
Application method of elastic pin shaft for mounting standard section of tower crane Download PDFInfo
- Publication number
- CN111332962B CN111332962B CN202010269180.9A CN202010269180A CN111332962B CN 111332962 B CN111332962 B CN 111332962B CN 202010269180 A CN202010269180 A CN 202010269180A CN 111332962 B CN111332962 B CN 111332962B
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- Prior art keywords
- pin shaft
- elastic
- pull rod
- elastic sleeve
- sleeve
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a use method of an elastic pin shaft for mounting a tower crane standard knot, which comprises the elastic pin shaft and a mounting spanner; the elastic pin shaft is arranged in a mounting hole at the joint of the standard joint and comprises a telescopic pull rod, an elastic sleeve, a connecting pull rod and a safety pin, wherein the inner end of the telescopic pull rod penetrates through the outer end cover of the elastic sleeve and is positioned in the cavity of the elastic sleeve; the outer end of the installation wrench and the outer end of the telescopic pull rod are connected and are attached to the outer end cover of the elastic sleeve. The installation wrench is used for being matched with the elastic pin shaft to be applied to butt joint installation of the tower crane standard joint, the installation is convenient and fast, the structure and the connection are stable after installation, and the installation wrench has the advantages of convenience and safety in operation and high construction efficiency.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a using method of an elastic pin shaft for mounting a tower crane standard knot.
Background
The tower crane is an indispensable large-scale construction machine in the building construction process, and major accidents easily occur in the jacking process of the tower crane. The key step of the tower crane jacking operation is to completely separate a standard knot of the tower crane from a slewing device of the tower crane, install a new standard knot on the lower part of the slewing device of the tower crane and fixedly connect the new standard knot with a pin shaft. The pin shaft used at the position is in interference fit generally, when the installation is carried out, a worker needs to knock the pin shaft into the installation hole by a sledge hammer, but the operation mode has great potential safety hazard during high-altitude construction, and the accidents during the lifting of the suspended ceiling of the tower mostly occur at the moment, so that the influence on the safety construction is great. The invention provides a using method of an elastic pin shaft for mounting a tower crane standard knot, which is used for overcoming the defects.
Disclosure of Invention
The invention provides a using method of an elastic pin shaft for mounting a tower crane standard knot, which realizes automatic mounting of a tower crane pin shaft through the cooperation of the elastic pin shaft and a mounting spanner and has the advantages of safety and high efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an elastic pin shaft for mounting a tower crane standard knot comprises an elastic pin shaft and a mounting spanner; the elastic pin shaft is arranged in a mounting hole at the joint of the standard joint and comprises a telescopic pull rod, an elastic sleeve, a connecting pull rod and a safety pin, wherein the inner end of the telescopic pull rod penetrates through the outer end cover of the elastic sleeve and is positioned in the cavity of the elastic sleeve; the outer ends of the installation wrench and the telescopic pull rod are connected and are attached to the outer end cover of the elastic sleeve.
Furthermore, two open grooves are formed in the front side and the rear side of the cylinder wall of the elastic sleeve, the cylinder wall is divided into an upper half cylinder wall and a lower half cylinder wall, and two connecting pull rods are arranged and are respectively connected to the inner walls of the upper half cylinder wall and the lower half cylinder wall.
Further, the outer end of telescopic pull rod is equipped with the end cap, installation spanner and end cap are connected to with the laminating of elastic sleeve's outer end cover.
Furthermore, the installation wrench comprises an outer sleeve, a support wrench rod, a movable wrench rod and a connecting clamping rod, the support wrench rod is fixedly connected to the outer wall of the outer sleeve, the movable wrench rod is hinged to the support wrench rod, the connecting clamping rod is arranged in the outer sleeve, and the outer end of the connecting clamping rod penetrates through the outer end face of the outer sleeve and is hinged to the inner end of the movable wrench rod; the inner end of the connecting clamping rod is connected with the end cap of the telescopic pull rod.
Further, the outer diameter of the outer end cover of the elastic sleeve is larger than that of the cylinder wall; the upper and lower size of the safety pin is larger than the outer diameter of the cylinder wall of the elastic sleeve.
Furthermore, the safety pin is perpendicular to the axis of the elastic sleeve and is vertically arranged to connect the upper half cylinder wall and the lower half cylinder wall.
Further, the slot extends from the inner end of the elastic sleeve to the outer end cover, and the slot on the outer end cover is circular.
Further, the outer diameter of the elastic sleeve is larger than the inner diameter of the mounting hole at the connecting position of the standard knot.
A use method of an elastic pin shaft for mounting a standard section of a tower crane comprises the following steps:
s1, assembling the pin shaft: the connecting pull rod is hinged on the inner wall of the elastic sleeve, and then the telescopic pull rod is inserted into the elastic sleeve and connected with the connecting pull rod to form a pin shaft;
s2, standard section butt joint: separating the standard knot of the tower crane from the slewing device of the tower crane, and installing a new standard knot on the lower part of the slewing device of the tower crane;
s3, narrowing the pin shaft: the installation wrench is pulled to drive the telescopic pull rod to move outwards so as to drive the connecting pull rod to move towards the axis, and the elastic sleeve is retracted inwards;
s3, inserting a pin: inserting the reduced pin shaft into the mounting hole of the standard knot, and then mounting the safety pin on the inner end of the pin shaft to prevent the pin shaft from falling off;
s4, locking standard knot: and after the elastic pin shaft is inserted in place, the installation wrench is loosened, and the elastic pin shaft is flicked to expand to clamp the standard joint.
The invention has the following beneficial effects:
the installation wrench is matched with the elastic pin shaft to be applied to butt joint installation of the tower crane standard knot, the installation is convenient and quick, the structure and the connection are stable after installation, the operation is safer, and the construction efficiency is high;
the change of the outer diameter of the elastic sleeve is realized through the linkage of the telescopic pull rod and the connecting pull rod, the installation is carried out after the compression, and the mounting hole is clamped by bouncing and expanding after the limitation is released, so that the elastic sleeve has the advantages of convenience in installation and stable state; the cooperation installation spanner has the simple operation, and is efficient, safe and reliable's advantage.
Drawings
FIG. 1 is an inside view of the present invention in use;
FIG. 2 is an outside view of the present invention in use;
FIG. 3 is a sectional view showing a connection state of the present invention;
FIG. 4 is a schematic view of the overall structure of the elastic hinge pin of the present invention;
FIG. 5 is a schematic view of the elastic sleeve of the present invention;
fig. 6 is a schematic view of the installation wrench of the present invention.
Reference numerals: 1-elastic pin shaft, 11-telescopic pull rod, 12-elastic sleeve, 121-slot, 13-connecting pull rod, 14-safety pin, 2-installation wrench, 21-outer sleeve, 22-supporting wrench rod, 23-movable wrench rod and 24-connecting clamping rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
As shown in fig. 1, 2, 3 and 4, an elastic pin shaft for mounting a tower crane standard knot comprises an elastic pin shaft 1 and a mounting wrench 2; the elastic pin shaft 1 is arranged in a mounting hole at the connection position of the standard joint and comprises a telescopic pull rod 11, an elastic sleeve 12, a connecting pull rod 13 and a safety pin 14, wherein the inner end of the telescopic pull rod 11 penetrates through the outer end cover of the elastic sleeve 12 and is positioned in the cavity of the elastic sleeve 12, the connecting pull rod 13 is arranged in the cavity of the elastic sleeve 12, one end of the connecting pull rod is connected to the inner wall of the elastic sleeve 12, the other end of the connecting pull rod is connected to the inner end of the connecting pull rod 13, the inner end of the elastic sleeve 12 is provided with an opening, the wall of the sleeve is provided with through long slots 121 at intervals, and the safety pin 14 is arranged at the inner end of the elastic sleeve 12; the installation wrench 2 is connected with the outer end of the telescopic pull rod 11 and is attached to the outer end cover of the elastic sleeve 12.
As shown in fig. 3, the principle of use of the present invention is as follows: connect the joint card pole 24 through installation spanner 2 and be connected with flexible pull rod 11, through lever principle with flexible pull rod 11 outwards pull out, drive two and connect 13 internal contracting of pull rod to the axle, and then two elastic sleeve 12 internal contracting about driving the share, reduce behind the external diameter of elastic pin axle 1, install elastic pin axle 1 to tower crane standard festival downthehole back, connect joint card pole 24 and flexible pull rod 11 and throw off and be connected, flexible pull rod 11 resets with connecting pull rod 13, and then elastic sleeve 12 rebounds the inflation, chucking tower crane standard festival, realize the stable connection of tower crane standard festival.
As shown in fig. 5, two slots 121 are formed on the front and rear sides of the cylinder wall of the elastic sleeve 12, so as to divide the cylinder wall into an upper half cylinder wall and a lower half cylinder wall, and two connecting rods 13 are provided and respectively connected to the inner walls of the upper half cylinder wall and the lower half cylinder wall.
Cut apart into two piece about elastic sleeve 12 to draw inwards through connecting pull rod 13, reduce the ascending external dimension of elastic sleeve 12 from top to bottom, reduce the ascending external dimension of fore-and-aft direction through fluting 121, guarantee that the whole size in outside of elastic sleeve 12 reduces, can get into the standard festival mounting hole smoothly, and after loosening connecting pull rod 13, elastic sleeve 12 bounces out the chucking mounting hole.
Further, the outer end of the telescopic pull rod 11 is provided with an end cap, and the installation wrench 2 is connected with the end cap and attached to the outer end cap of the elastic sleeve 12. The end cap at the outer end of the telescopic pull rod 11 is connected with the connecting clamping rod 24 of the installation wrench 2 to drive the telescopic pull rod 11 to stretch out and draw back inside and outside.
As shown in fig. 6, further, the installation wrench 2 includes an outer sleeve 21, a supporting wrench rod 22, a movable wrench rod 23 and a connecting clamping rod 24, the supporting wrench rod 22 is fixedly connected to the outer wall of the outer sleeve 21, the movable wrench rod 23 is hinged to the supporting wrench rod 22, the connecting clamping rod 24 is arranged in the outer sleeve 21, and the outer end of the connecting clamping rod passes through the outer end face of the outer sleeve 21 and is hinged to the inner end of the movable wrench rod 23; the inner end of the connecting clamping rod 24 is connected with the end cap of the telescopic pull rod 11.
The movable wrench rod 23 and the supporting wrench rod 22 form a labor-saving lever, when in use, the outer end of the movable wrench rod 23 is pulled, and the inner end of the movable wrench rod 23 is tilted to drive the connecting clamping rod 24 to move outwards, so as to drive the telescopic pull rod 11.
As shown in fig. 2 and 6, the inner end of the connecting clamping rod 24 is preferably a bayonet and clamps the end cap of the telescopic pull rod 11. When in use, the buckle of the connecting clamping rod 24 is clamped into the end cap of the telescopic pull rod 11 from the side, and then the stretching operation is carried out.
Further, the outer end cover outer diameter of the elastic sleeve 12 is larger than the outer diameter of the cylinder wall; the upper and lower dimensions of the safety pin 14 are larger than the outer diameter of the cylinder wall of the elastic sleeve 12.
Further, the safety pin 14 is perpendicular to the axis of the elastic sleeve 12 and is vertically arranged to connect the upper half cylinder wall and the lower half cylinder wall.
When the elastic pin shaft 1 is positioned in the standard knot mounting hole, the movement of the elastic pin shaft 1 is limited through the matching of the outer end cover of the elastic sleeve 12 and the safety pin 14, and the stable and safe connection of the standard knot is ensured.
Further, the slot 121 extends from the inner end of the elastic sleeve 12 to the outer end cap, and the slot 121 on the outer end cap is circular. The circular slot is arranged, so that cracking of the slot of the elastic sleeve 12 caused by stress concentration is avoided, and the structure safety is ensured.
Further, the outer diameter of the elastic sleeve 12 is larger than the inner diameter of the mounting hole at the joint of the standard knot.
As shown in FIG. 3, the use method of the elastic pin shaft for mounting the standard knot of the tower crane comprises the following steps:
s1, assembling the pin shaft: the connecting pull rod 13 is hinged on the inner wall of the elastic sleeve 12, and then the telescopic pull rod 11 is inserted into the elastic sleeve 12 and connected with the connecting pull rod 13 to form a pin shaft;
s2, standard section butt joint: separating the standard knot of the tower crane from the slewing device of the tower crane, and installing a new standard knot on the lower part of the slewing device of the tower crane;
s3, narrowing the pin shaft: the installation wrench 2 is tightly clamped with the telescopic pull rod 11 of the pin shaft, the installation wrench 2 is wrenched to drive the telescopic pull rod 11 to move outwards, and then the connection pull rod 13 is driven to move towards the axis, and the elastic sleeve 12 is retracted inwards;
s3, inserting a pin: inserting the reduced pin shaft into the mounting hole of the standard knot, and then mounting the safety pin 14 on the inner end of the pin shaft to prevent the pin shaft from falling off;
s4, locking standard knot: after the elastic pin shaft 1 is inserted in place, the installation wrench 2 is loosened, the elastic pin shaft 1 is bounced to expand, and the standard joint is clamped tightly.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (6)
1. A use method of an elastic pin shaft for mounting a tower crane standard knot is characterized by comprising the following steps: comprises an elastic pin shaft (1) and a mounting spanner (2); the elastic pin shaft (1) is arranged in a mounting hole at the joint of the standard joint and comprises a telescopic pull rod (11), an elastic sleeve (12), a connecting pull rod (13) and a safety pin (14), wherein the inner end of the telescopic pull rod (11) penetrates through the outer end cover of the elastic sleeve (12) and is positioned in the cavity of the elastic sleeve (12), the connecting pull rod (13) is arranged in the cavity of the elastic sleeve (12), one end of the connecting pull rod is connected to the inner wall of the elastic sleeve (12), the other end of the connecting pull rod is connected to the inner end of the telescopic pull rod (11), the inner end of the elastic sleeve (12) is opened, through long grooves (121) are formed in the wall of the sleeve at intervals, and the safety pin (14) is arranged at the inner end of the elastic sleeve (12); the mounting wrench (2) is connected with the outer end of the telescopic pull rod (11) and is attached to the outer end cover of the elastic sleeve (12);
two open grooves (121) are formed in the front side and the rear side of the cylinder wall of the elastic sleeve (12) oppositely, the cylinder wall is divided into an upper half cylinder wall and a lower half cylinder wall, and two connecting pull rods (13) are arranged and are respectively connected to the inner walls of the upper half cylinder wall and the lower half cylinder wall;
an end cap is arranged at the outer end of the telescopic pull rod (11), and the mounting wrench (2) is connected with the end cap and attached to the outer end cover of the elastic sleeve (12);
the using method comprises the following steps:
s1, assembling the pin shaft: the connecting pull rod (13) is hinged on the inner wall of the elastic sleeve (12), and then the telescopic pull rod (11) is inserted into the elastic sleeve (12) and connected with the connecting pull rod (13) to form a pin shaft;
s2, standard section butt joint: separating the standard knot of the tower crane from the slewing device of the tower crane, and installing a new standard knot on the lower part of the slewing device of the tower crane;
s3, narrowing the pin shaft: the installation wrench (2) is pulled to clamp the telescopic pull rod (11) of the pin shaft, the installation wrench (2) is pulled to drive the telescopic pull rod (11) to move outwards, and then the connection pull rod (13) is driven to move towards the axis, and the elastic sleeve (12) is retracted inwards;
s3, inserting a pin: inserting the reduced pin shaft into the mounting hole of the standard knot, and then mounting a safety pin (14) on the inner end of the pin shaft to prevent the pin shaft from falling off;
s4, locking standard knot: after the elastic pin shaft (1) is inserted in place, the installation wrench (2) is loosened, the elastic pin shaft (1) is bounced to expand, and the standard knot is clamped.
2. The use method of the elastic pin shaft for mounting the tower crane standard knot as claimed in claim 1, is characterized in that: the installation wrench (2) comprises an outer sleeve (21), a support wrench rod (22), a movable wrench rod (23) and a connecting clamping rod (24), the support wrench rod (22) is fixedly connected to the outer wall of the outer sleeve (21), the movable wrench rod (23) is hinged to the support wrench rod (22), the connecting clamping rod (24) is arranged in the outer sleeve (21), and the outer end of the connecting clamping rod penetrates through the outer end face of the outer sleeve (21) and is hinged to the inner end of the movable wrench rod (23); the inner end of the connecting clamping rod (24) is connected with the end cap of the telescopic pull rod (11).
3. The use method of the elastic pin shaft for mounting the tower crane standard knot as claimed in claim 1, is characterized in that: the outer end cover outer diameter of the elastic sleeve (12) is larger than the outer diameter of the cylinder wall; the upper and lower size of the safety pin (14) is larger than the outer diameter of the cylinder wall of the elastic sleeve (12).
4. The use method of the elastic pin shaft for mounting the tower crane standard knot as claimed in claim 1, is characterized in that: the safety pin (14) is perpendicular to the axis of the elastic sleeve (12), is vertically arranged and is connected with the upper half cylinder wall and the lower half cylinder wall.
5. The use method of the elastic pin shaft for mounting the tower crane standard knot as claimed in claim 1, is characterized in that: the slot (121) extends from the inner end of the elastic sleeve (12) to the outer end cover, and the slot (121) on the outer end cover is circular.
6. The use method of the elastic pin shaft for mounting the tower crane standard knot as claimed in claim 1, is characterized in that: the outer diameter of the elastic sleeve (12) is larger than the inner diameter of the mounting hole at the joint of the standard knot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010269180.9A CN111332962B (en) | 2020-04-08 | 2020-04-08 | Application method of elastic pin shaft for mounting standard section of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010269180.9A CN111332962B (en) | 2020-04-08 | 2020-04-08 | Application method of elastic pin shaft for mounting standard section of tower crane |
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| Publication Number | Publication Date |
|---|---|
| CN111332962A CN111332962A (en) | 2020-06-26 |
| CN111332962B true CN111332962B (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010269180.9A Active CN111332962B (en) | 2020-04-08 | 2020-04-08 | Application method of elastic pin shaft for mounting standard section of tower crane |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4932638A (en) * | 1988-10-27 | 1990-06-12 | Chen Tsun Ping | Stepping type expansion bolt extracting gun |
| CN203035684U (en) * | 2013-02-02 | 2013-07-03 | 李苏亭 | Umbrella supporting type expansion bolt |
| CN103967901A (en) * | 2014-05-21 | 2014-08-06 | 中港长江建设工程有限公司 | Novel expansion bolt |
| CN204958232U (en) * | 2015-07-29 | 2016-01-13 | 大连鹏翔建筑机械有限公司 | Tower crane stock structure |
| CN205772976U (en) * | 2016-05-24 | 2016-12-07 | 江西飞达电气设备有限公司 | A kind of tower crane lifting guide support adding fall joint pre-alarming device |
| CN109941897A (en) * | 2019-04-23 | 2019-06-28 | 广东大汉建设机械有限公司 | A kind of tower crane jacking method |
-
2020
- 2020-04-08 CN CN202010269180.9A patent/CN111332962B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4932638A (en) * | 1988-10-27 | 1990-06-12 | Chen Tsun Ping | Stepping type expansion bolt extracting gun |
| CN203035684U (en) * | 2013-02-02 | 2013-07-03 | 李苏亭 | Umbrella supporting type expansion bolt |
| CN103967901A (en) * | 2014-05-21 | 2014-08-06 | 中港长江建设工程有限公司 | Novel expansion bolt |
| CN204958232U (en) * | 2015-07-29 | 2016-01-13 | 大连鹏翔建筑机械有限公司 | Tower crane stock structure |
| CN205772976U (en) * | 2016-05-24 | 2016-12-07 | 江西飞达电气设备有限公司 | A kind of tower crane lifting guide support adding fall joint pre-alarming device |
| CN109941897A (en) * | 2019-04-23 | 2019-06-28 | 广东大汉建设机械有限公司 | A kind of tower crane jacking method |
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| CN111332962A (en) | 2020-06-26 |
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