CN113247800A - Crane with a movable crane - Google Patents

Crane with a movable crane Download PDF

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Publication number
CN113247800A
CN113247800A CN202110599228.7A CN202110599228A CN113247800A CN 113247800 A CN113247800 A CN 113247800A CN 202110599228 A CN202110599228 A CN 202110599228A CN 113247800 A CN113247800 A CN 113247800A
Authority
CN
China
Prior art keywords
super
lift
crane
wire rope
reel
Prior art date
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.)
Pending
Application number
CN202110599228.7A
Other languages
Chinese (zh)
Inventor
房磊
秦小虎
付玉琴
赵瑞学
杜园
王坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Heavy Machinery Co Ltd
Original Assignee
Xuzhou Heavy Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xuzhou Heavy Machinery Co Ltd filed Critical Xuzhou Heavy Machinery Co Ltd
Priority to CN202110599228.7A priority Critical patent/CN113247800A/en
Publication of CN113247800A publication Critical patent/CN113247800A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/72Counterweights or supports for balancing lifting couples
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/16Applications of indicating, registering, or weighing devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/72Counterweights or supports for balancing lifting couples
    • B66C23/74Counterweights or supports for balancing lifting couples separate from jib
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02Driving gear
    • B66D1/08Driving gear incorporating fluid motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28Other constructional details
    • B66D1/40Control devices
    • B66D1/48Control devices automatic
    • B66D1/50Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control

Abstract

The invention relates to a crane, comprising: a bearing part (4), a crane arm (5) which is arranged on the bearing part (4) in a pitching and swinging manner; the super-lift arm support (3) is connected with the crane arm (5); the super-lifting winding drum (6) is arranged on the super-lifting arm support (3); and one end of the super-lift steel wire rope (1) is connected with the super-lift reel (6), the other end of the super-lift steel wire rope is connected with the crane arm (5) or connected with the super-lift reel (3) after bypassing a pulley (13) arranged on the crane arm (5), and the super-lift steel wire rope (1) is configured to be tensioned only under the driving of the super-lift reel (6), so that the problems of more parts, complex structure and high cost of the crane in the related art are solved.

Description

Crane with a movable crane
Technical Field
The invention relates to the field of engineering machinery, in particular to a crane.
Background
With the continuous development of social science and technology, the engineering crane as a major equipment is widely used, wherein the use of the engineering crane in wind power projects and large petrochemical projects is increasing day by day. The super lifting device is used as a key part of the crane and plays an important role in improving the performance of the crane. Before the crane is used for hoisting, the super-hoisting steel wire rope needs to be tensioned, so that the crane arm is in a tensioned state, and the hoisting performance is improved to the maximum extent. Therefore, the tensioning technology of the super-lift steel wire rope becomes more and more a key technology for improving the performance of the crane, the technical level of the crane and the user experience, and is highly valued and deeply researched by various crane manufacturers.
Fig. 1 is a schematic structural view showing a boom and a super lift apparatus of a related art crane. As shown in fig. 1, the superlift device 16 is composed of: the super-lift boom comprises a super-lift boom 18, a super-lift rear balancing device 38, a super-lift steel wire rope 20, a super-lift winch 22, a super-lift tensioning oil cylinder 36, a super-start pulley 26, a super-lift fixed pulley 28, a super-lift winch locking plate 34 and a super-lift winch ratchet numerical detector 32.
Wherein the main arm 10 is composed of a base arm 12 and a telescopic arm 14.
The super lift device 16 is connected at one end to the base arm 12 and at the other end to the main arm via a super lift cable 20 and a rear counterbalance device 38. And finally a stable triangular support structure is formed.
Description of the function: the main function of the super-acting device is stressed by the combined action of the steel wire rope 20 and the rear balancing device 38, so that the stress condition of the main arm 10 is changed, and the stress capacity of the main arm is finally improved.
The pre-tensioning process of the super-lifting steel wire rope: the wire rope is tensioned by means of a tensioning cylinder in the super-lift device, and a locking mechanism 34 of the super-lift winch 22 is locked to detect the number of winch teeth 32.
Simply speaking, the super-lift winch is provided with a circle of teeth, each tooth is provided with a transponder with an independent number, the super-lift winch reaches a set angle and a set tooth number through stretching of the tensioning cylinder, and the system does not have a tension detection element and is irrelevant to tension.
The component parts of the super-lift device comprise a super-lift tensioning oil cylinder and a super-lift responder, and the super-lift tensioning oil cylinder is provided with elements for position detection, length detection and the like. The defects are that the system has more components, complex action, low tensioning efficiency, more detection components, lower system reliability and high cost.
Disclosure of Invention
The invention aims to provide a crane to solve the problem of complex structure of the crane in the related art.
According to an aspect of an embodiment of the present invention, there is provided a crane including:
the load-bearing part is provided with a bearing part,
a boom attached to the carrier member so as to be swingable in a pitching manner;
the super-lift arm frame is connected with the crane arm;
the super-lift winding drum is arranged on the super-lift arm support; and
and one end of the super-lift steel wire rope is connected with the super-lift reel, the other end of the super-lift steel wire rope is connected with the crane boom or connected with the super-lift arm support after bypassing a pulley arranged on the crane boom, and the super-lift steel wire rope is configured to be tensioned only under the driving of the super-lift reel.
In some embodiments, the crane further comprises a rotation amount detection means for detecting the rotation amount of the super lift drum.
In some embodiments, the rotation amount detection part includes an angle sensor.
In some embodiments, the crane further comprises:
a driving part configured to drive the super-lift reel to rotate;
and the controller is in signal connection with the driving part and the rotation amount detection part respectively and is configured to control the driving part to stop moving when the super-lift reel rotates to enable the super-lift steel wire rope to be tensioned by a preset rotation amount.
In some embodiments, the drive component comprises a variable displacement hydraulic motor.
In some embodiments, the crane further comprises a tension detection component that detects a tension of the superlift wire rope.
In some embodiments, the controller is in signal communication with the tension sensing component and is configured to control the drive component to stop rotating when the amount of rotation of the super lift spool reaches a predetermined amount of rotation and/or the super lift wire rope tension reaches a predetermined tension.
In some embodiments, the tension detection component includes an oil pressure sensor configured to detect an oil pressure of a hydraulic motor driving the overrun spool.
In some embodiments, the crane further comprises:
the first positioning parts are arranged along the circumferential direction of the super-lifting winding drum and are connected with the super-lifting winding drum;
and a second positioning member configured to be engageable with any one of the first positioning members, the second positioning member being configured to switch between a first position in which it engages with the first positioning member to restrict rotation of the super-lift spool in the first direction and a second position in which it allows rotation of the super-lift spool in the first direction.
In some embodiments of the present invention, the,
the crane further comprises a driving device for driving the first positioning component to switch between the first position and the second position; or
The first positioning component is in a tooth shape and is inclined relative to the radial direction of the super lifting reel so as to push the second positioning component to a second position when the first positioning component rotates along with the super lifting reel along a second direction, wherein the second direction is opposite to the first direction.
By applying the technical scheme of the invention, the super-lift steel wire rope 1 can be tensioned only by the driving force of the super-lift reel 6, compared with the technical scheme in the prior art, the super-lift tensioning oil cylinder, corresponding accessories and oil ways are saved, and the problems of more parts, complex structure and high cost of the crane in the related technology are solved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings needed to be used in the description of the embodiments or the related art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view showing a structure of a boom and a super lift apparatus of a crane according to the related art; and
FIG. 2 shows a schematic side view of a crane according to an embodiment of the invention;
FIG. 3 shows a rear view of a crane according to an embodiment of the invention;
fig. 4 shows a schematic structural diagram of a super lift hoist of a crane according to an embodiment of the present invention; and
fig. 5 shows a schematic structural view of a crane according to another alternative embodiment of the invention.
In the figure:
1. a super-lift steel wire rope; 2. a tension detecting member; 3. the super-lift arm support; 4. a carrier member; 5. a cargo boom; 6. lifting the winding drum; 7. a connecting member; 8. a second positioning member; 9. (ii) a 10. A rotation amount detecting member; 11. a drive member; 12. a first positioning member; 13. a pulley.
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 embodiments of the present invention, 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
Referring to fig. 2 and 3, the crane of the present embodiment includes a bearing member 4, a boom 5, a super-lift boom 3, a super-lift reel 6, and a super-lift wire rope 1. The crane arm 5 is arranged on the bearing part 4 in a pitching and swinging manner; the super-lift arm frame 3 is connected with a lift arm 5; the super-lift winding drum 6 is arranged on the super-lift arm support 3; one end of the super-lift steel wire rope 1 is connected with the super-lift reel 6, the other end of the super-lift steel wire rope is connected with the crane boom 5 or connected with the super-lift arm support 3 after bypassing a pulley 13 arranged on the crane boom 5, and the super-lift steel wire rope 1 is configured to be tensioned only under the driving of the super-lift reel 6.
In the embodiment, the super-lift steel wire rope 1 can be tensioned only by the driving force of the super-lift reel 6, compared with the technical scheme in the prior art, the super-lift tensioning oil cylinder, corresponding accessories and oil ways are saved, and the problems of more parts, complex structure and high cost of the crane in the related art are solved.
As shown in fig. 2, the other end of the super lift wire rope 1 is connected to one end of the boom 5 remote from the load bearing member 4. As shown in fig. 5, the pulley 13 is provided at one end of the boom 5 far from the load bearing member 4, and the other end of the super lift wire rope 1 is connected to the super lift boom 3 after passing around the pulley 13 mounted on the boom 5.
The crane further comprises a connecting part 7, one end of the connecting part 7 is connected with one end of the boom 5 adjacent to the bearing part 4, and the other end of the connecting part 7 is connected with one end of the super-lift arm frame 3 far away from the boom 5.
The crane further comprises a turning amount detection means 10 for detecting the turning amount of the super lift reel 6. In the present embodiment, the rotation amount detection means 10 includes an angle sensor. In other embodiments, the rotation amount detecting means 10 includes a counter and a plurality of counter trigger means arranged along the circumferential direction of the super-lift spool 6, and when the counter trigger means passes through the counter during the rotation of the super-lift spool 6, the counter is triggered and records the number of counter trigger means passing therethrough to determine the rotation amount of the super-lift spool 6.
The crane further comprises a driving part 11 and a controller, wherein the driving part 11 is configured to drive the super-lift reel 6 to rotate; the controller is in signal connection with the driving part 11 and the rotation amount detecting part 10, respectively, and is configured to control the driving part 11 to stop moving when the super lift reel 6 rotates by a predetermined rotation amount by which the super lift wire rope 1 is tensioned.
The drive means 11 comprise a variable displacement hydraulic motor for providing sufficient power to tension the wire rope 1.
The crane further comprises a tension detection component 2 for detecting the tension of the super-lift steel wire rope 1. The controller is in signal connection with the tension detection means 2 and is configured to control the drive means 11 to stop rotating when the amount of rotation of the super lift reel 6 reaches a predetermined amount of rotation and/or the tension of the super lift wire rope 1 reaches a predetermined tension.
In the present embodiment, the tension detecting means 2 includes a tension sensor. As shown in fig. 2, one end of the super-lift wire rope 1 is connected to the super-lift drum 6, and the other end of the super-lift wire rope 1 is connected to the boom 5 through the tension detecting member 2. One end of the tension detection part 2 is connected with the super-lifting steel wire rope 1, and the other end of the tension detection part 2 is connected with the crane boom 5.
In other embodiments, as shown in fig. 5, one end of the super-lift steel wire rope 1 is connected with the super-lift reel 6, the other end of the super-lift steel wire rope is connected with the super-lift arm support 3 after passing through a pulley 13 arranged on the crane arm 5, and the tension detection component 2 is connected between the super-lift arm support 3 and the other end of the super-lift steel wire rope 1.
In other embodiments, the tension detecting means 2 includes an oil pressure sensor configured to detect the oil pressure of a hydraulic motor that drives the super-lift bobbin 6.
In other embodiments, the tension detecting member 2 includes a strain gauge.
As shown in fig. 4, the crane further comprises a plurality of first positioning members 12 and second positioning members 8. The plurality of first positioning members 12 are arranged along the circumferential direction of the super-lift bobbin 6 and connected to the super-lift bobbin 6; the second positioning member 8 is configured to be engageable with any one of the first positioning members 12, and the second positioning member 8 is configured to switch between a first position in which it engages with the first positioning member 12 to restrict the super-lift spool 6 from rotating in the first direction and a second position in which it allows the super-lift spool 6 to rotate in the first direction.
The crane further comprises a drive means for driving the first positioning member 8 between the first position and the second position.
The process of tensioning the super-lifting steel wire rope of the crane comprises the following steps:
1. the driving component 11 drives the super-lift reel 6 to rotate so as to pull the steel wire rope;
2. the rotation amount detection part 10 monitors the rotation amount of the super-lift reel 6 in real time, and when the super-lift reel rotates for a preset rotation amount, the super-lift reel 6 stops rotating;
3. the driving device drives the second positioning component 8 to the first position to lock the super-lift reel;
4. the tension detection component 2 detects the tension of the super-lift steel wire rope 1, when the super-lift winding drum 6 rotates for a preset rotation amount, the tension of the super-lift steel wire rope 1 reaches a preset tension, and the tensioning operation of the super-lift steel wire rope is completed.
In some embodiments, the crane first positioning member 12 is toothed and is inclined with respect to the radial direction of the super-lift reel 6 to urge the second positioning member 8 towards the second position when the first positioning member 12 rotates with the super-lift reel 6 in a second direction, opposite the first direction, the first and second positioning members 12, 8 forming a ratchet and pawl mechanism to allow unidirectional rotation of the super-lift reel.
The present invention is not limited to the above exemplary embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A crane, comprising:
a bearing part (4),
a boom (5) mounted on the carrier (4) so as to be pivotable in a pitching manner;
the super-lift arm support (3) is connected with the crane arm (5);
the super-lifting winding drum (6) is arranged on the super-lifting arm support (3); and
and one end of the super-lift steel wire rope (1) is connected with the super-lift reel (6), the other end of the super-lift steel wire rope is connected with the crane boom (5) or connected with the super-lift reel (3) after bypassing a pulley (13) arranged on the crane boom (5), and the super-lift steel wire rope (1) is configured to be tensioned only under the driving of the super-lift reel (6).
2. A crane according to claim 1, further comprising rotation amount detecting means (10) for detecting the rotation amount of the super lift reel (6).
3. A crane according to claim 2, wherein the rotation amount detection means (10) comprises an angle sensor.
4. The crane of claim 2, further comprising:
a drive component (11) configured to drive the super-lift reel (6) in rotation;
and the controller is in signal connection with the driving part (11) and the rotation amount detection part (10) respectively and is configured to control the driving part (11) to stop moving when the super-lifting reel (6) rotates for a preset rotation amount for tensioning the super-lifting steel wire rope (1).
5. A crane according to claim 4, characterized in that the drive member (11) comprises a variable hydraulic motor.
6. A crane according to any one of claims 4, further comprising a tension detecting means (2) for detecting the tension of the superlift wire rope (1).
7. A crane according to claim 4, characterized in that the controller is in signal connection with the tension detection means (2) and is configured to control the drive means (11) to stop rotating when the amount of rotation of the super lift drum (6) reaches the predetermined amount of rotation and/or the super lift wire rope (1) tension reaches a predetermined tension.
8. A crane according to claim 6, characterized in that the tension detection means (2) comprises an oil pressure sensor configured to detect the oil pressure of a hydraulic motor driving the super lift drum (6).
9. The crane of claim 1, further comprising:
a plurality of first positioning members (12) arranged along the circumferential direction of the super-lift reel (6) and connected to the super-lift reel (6);
a second positioning member (8) configured to be cooperable with any of the first positioning members (12), the second positioning member (8) being configured to switch between a first position cooperating with the first positioning member (12) to restrict rotation of the super lift spool (6) in a first direction and a second position allowing rotation of the super lift spool (6) in the first direction.
10. A crane according to claim 9,
the crane further comprises a drive device for driving the first positioning member (8) to switch between the first position and the second position; or
The first positioning element (12) is toothed and inclined with respect to the radial direction of the super-lift drum (6) so as to push the second positioning element (8) towards the second position when the first positioning element (12) rotates with the super-lift drum (6) in a second direction, opposite to the first direction.
CN202110599228.7A 2021-05-31 2021-05-31 Crane with a movable crane Pending CN113247800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110599228.7A CN113247800A (en) 2021-05-31 2021-05-31 Crane with a movable crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110599228.7A CN113247800A (en) 2021-05-31 2021-05-31 Crane with a movable crane

Publications (1)

Publication Number Publication Date
CN113247800A true CN113247800A (en) 2021-08-13

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CN202110599228.7A Pending CN113247800A (en) 2021-05-31 2021-05-31 Crane with a movable crane

Country Status (1)

Country Link
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102351129A (en) * 2011-10-11 2012-02-15 三一汽车起重机械有限公司 Super-lifting device for improving lifting performance of crane and crane
CN102602827A (en) * 2012-03-14 2012-07-25 中联重科股份有限公司 Crane and super-lift device thereof
CN103420296A (en) * 2013-08-29 2013-12-04 徐州重型机械有限公司 Super-lifting device, front pre-tightened steel wire rope length control system and crane
CN103466468A (en) * 2013-08-29 2013-12-25 三一汽车起重机械有限公司 Superlift device, engineering machine and front tension device of superlift device
CN203715113U (en) * 2013-11-14 2014-07-16 徐州重型机械有限公司 Crane and super-hoisting winch locking mechanism thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102351129A (en) * 2011-10-11 2012-02-15 三一汽车起重机械有限公司 Super-lifting device for improving lifting performance of crane and crane
CN102602827A (en) * 2012-03-14 2012-07-25 中联重科股份有限公司 Crane and super-lift device thereof
WO2013135041A1 (en) * 2012-03-14 2013-09-19 中联重科股份有限公司 Super-lift device of crane and crane
CN103420296A (en) * 2013-08-29 2013-12-04 徐州重型机械有限公司 Super-lifting device, front pre-tightened steel wire rope length control system and crane
CN103466468A (en) * 2013-08-29 2013-12-25 三一汽车起重机械有限公司 Superlift device, engineering machine and front tension device of superlift device
CN203715113U (en) * 2013-11-14 2014-07-16 徐州重型机械有限公司 Crane and super-hoisting winch locking mechanism thereof

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