CN110872066A - Adjustable mast luffing mechanism of crawler crane - Google Patents
Adjustable mast luffing mechanism of crawler crane Download PDFInfo
- Publication number
- CN110872066A CN110872066A CN201911204307.2A CN201911204307A CN110872066A CN 110872066 A CN110872066 A CN 110872066A CN 201911204307 A CN201911204307 A CN 201911204307A CN 110872066 A CN110872066 A CN 110872066A
- Authority
- CN
- China
- Prior art keywords
- mast
- auxiliary
- luffing mechanism
- crawler crane
- main
- 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
Links
Images
Classifications
-
- 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
- B66C23/18—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 specially adapted for use in particular purposes
- B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/46—Mobile jib-cranes with non-slewable jibs
-
- 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
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
- B66C23/823—Bracing equipment acting in vertical direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses an adjustable mast luffing mechanism of a crawler crane, which comprises a counterweight base and an auxiliary oil cylinder, wherein a main hoisting drum is fixed at the top of the counterweight base through a bolt, an auxiliary hoisting drum is fixed on one side of the main hoisting drum and the counterweight base through a bolt, a first fixing seat is welded on one side of the auxiliary hoisting drum, which is far away from the main hoisting drum, and the counterweight base, a second fixing seat is welded on one side of the first fixing seat, which is far away from the auxiliary hoisting drum, and the auxiliary oil cylinder is rotatably connected in the second fixing seat. Has the advantages that: the mast lifting device has the advantages that the second fixed seat, the movable connecting block and the auxiliary oil cylinder are additionally arranged, so that the mast lifting device can play a role in protection during mast lifting operation, and can be used as a second luffing mechanism for lifting operation when the luffing mechanism of the mast breaks down, so that the normal use of the mast lifting device is guaranteed.
Description
Technical Field
The invention relates to the technical field of crawler cranes, in particular to an adjustable mast luffing mechanism of a crawler crane.
Background
The crawler crane is a mobile crane which is provided with a hoisting operation part on a crawler chassis and runs by a crawler device. The crawler crane is a mobile boom crane provided with a crawler running device. The device consists of a movable arm, a rotary table and other metal structures, a lifting mechanism, a rotating mechanism, an amplitude-changing mechanism, an operating mechanism and the like. The lifting and amplitude-changing mechanism adopts a winding drum to wind a steel rope, and the object taking device is lifted and the movable arm is subjected to pitching amplitude-changing through a complex pulley block. The rotating mechanism adopts a rotating disc type supporting device, and is suitable for lifting, loading and unloading operations of industry and forestry.
The luffing mechanism of the mast in the existing crawler-type mast crane mostly realizes luffing by winding and unwinding a guy rope through a winch, lacks auxiliary appliances, and not only leads to the incapability of working of the crane when the winch and the guy rope break down, but also increases potential safety hazards.
Disclosure of Invention
Technical problem to be solved
In order to overcome the defects of the prior art, the adjustable mast luffing mechanism of the crawler crane is provided, and the problem that the luffing mechanism of the mast in the existing crawler mast crane mostly realizes luffing by winding and unwinding a guy rope through a winch, lacks of auxiliary appliances, and not only can the crane be prevented from working when the winch and the guy rope break down, but also potential safety hazards are increased is solved.
(II) technical scheme
The invention is realized by the following technical scheme: the invention provides an adjustable mast luffing mechanism of a crawler crane, which comprises a counterweight base and an auxiliary oil cylinder, wherein a main hoisting drum is fixed at the top of the counterweight base through a bolt, an auxiliary hoisting drum is fixed on one side of the main hoisting drum and the counterweight base through a bolt, a first fixing seat is welded on one side of the auxiliary hoisting drum, which is far away from the main hoisting drum, and the counterweight base, a second fixing seat is welded on one side of the first fixing seat, which is far away from the auxiliary hoisting drum, and the auxiliary oil cylinder is rotatably connected in the second fixing seat.
By adopting the technical scheme, the oil supply system of the amplitude-variable oil cylinder is controlled by the control room of the crawler crane, and the auxiliary oil cylinder follows the mast to change amplitude together.
Furthermore, a main winch is rotatably connected to one side wall of the main winch barrel through a shaft, the main winch is connected with the counterweight base through a bolt, and an auxiliary winch is rotatably connected to one side wall of the auxiliary winch barrel through a shaft.
Furthermore, a guy rope is connected to the main winding drum in a winding manner, and a hoisting rope is connected to the auxiliary winding drum in a winding manner.
By adopting the technical scheme, the guy rope is an important stabilizing system in mast lifting and various high-rise structures, plays a role in stabilizing the mast and bearing partial load in mast lifting, and has a direct relation with the safe work of the mast crane.
Furthermore, a rotating shaft is inserted in the first fixing seat, a mast is rotatably connected to the rotating shaft, a movable connecting block is welded to the side wall of the mast, and the movable connecting block is rotatably connected with the auxiliary oil cylinder.
Furthermore, an arm head assembly is fixed at one end of the mast through a bolt, a pulley block is connected in the arm head assembly in a rotating mode, and the hoisting rope is connected with the pulley block in a winding mode.
Furthermore, a fixing pile is welded at the top of the arm head assembly, and the cable rope is connected with the fixing pile in a winding mode.
(III) advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
in order to solve the problems that most of mast luffing mechanisms in the existing crawler-type mast crane realize luffing by winding and unwinding a cable rope through a winch, auxiliary appliances are lacked, the crane cannot work and potential safety hazards are increased when the winch and the cable rope break down, a second fixed seat, a movable connecting block and an auxiliary oil cylinder are additionally arranged, the mast luffing mechanism can play a role in protection during mast hoisting operation, and can be used as a second luffing mechanism for hoisting operation when the luffing mechanism of the mast breaks down, so that the normal use of the device is guaranteed.
Drawings
FIG. 1 is a schematic structural view of an adjustable mast luffing mechanism of a crawler crane according to the present invention;
FIG. 2 is a top view of a jib head assembly in an adjustable mast luffing mechanism of a crawler crane according to the present invention;
FIG. 3 is a schematic view of a connection relationship between a second fixing seat and an auxiliary oil cylinder in the adjustable mast luffing mechanism of the crawler crane.
The reference numerals are explained below:
1. a counterweight base; 2. a main hoisting drum; 3. a main hoist; 4. a first fixed seat; 5. a mast; 6. a guy rope; 7. an arm head assembly; 8. a rotating shaft; 9. an auxiliary hoist; 10. an auxiliary winding drum; 11. a hoisting rope; 12. a pulley block; 13. installing a bolt; 14. an auxiliary oil cylinder; 15. a movable connecting block; 16. a second fixed seat; 17. and (6) fixing the pile.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-3, the adjustable mast luffing mechanism of the crawler crane in this embodiment includes a counterweight base 1 and an auxiliary cylinder 14, a main winding drum 2 is fixed to the top of the counterweight base 1 through a bolt, an auxiliary winding drum 10 is fixed to one side of the main winding drum 2 and the counterweight base 1 through a bolt, a first fixing seat 4 is welded to one side of the auxiliary winding drum 10, which is far away from the main winding drum 2, of the counterweight base 1, a second fixing seat 16 is welded to one side of the first fixing seat 4, which is far away from the auxiliary winding drum 10, of the counterweight base 1, the auxiliary cylinder 14 is rotatably connected to the second fixing seat 16, an oil supply system of the luffing cylinder is controlled by a control room of the crawler crane, and.
One side wall of the main hoisting drum 2 is rotatably connected with a main hoisting machine 3 through a shaft piece, the main hoisting machine 3 is connected with the counterweight base 1 through a bolt, and one side wall of the auxiliary hoisting drum 10 is rotatably connected with an auxiliary hoisting machine 9 through a shaft piece.
The main winding drum 2 is connected with a guy rope 6 in a winding mode, the auxiliary winding drum 10 is connected with a hoisting rope 11 in a winding mode, the guy rope 6 is in the hoisting and various high-rise structures of the mast 5, the guy rope 6 is an important stabilizing system and plays a role in stabilizing the mast 5 and bearing part of load in the hoisting and hanging process of the mast 5, and the existence of the guy rope is directly related to the safe work of the mast 5 type crane.
A rotating shaft 8 is inserted in the first fixing seat 4, a mast 5 is rotatably connected to the rotating shaft 8, a movable connecting block 15 is welded to one side wall of the mast 5, and the movable connecting block 15 is rotatably connected with an auxiliary oil cylinder 14.
One end of the mast 5 is fixed with an arm head component 7 through a bolt, the arm head component 7 is connected with a pulley block 12 in a rotating way, and a hoisting rope 11 is connected with the pulley block 12 in a winding way.
The top of the arm head assembly 7 is welded with a fixing pile 17, and the guy cable 6 is connected with the fixing pile 17 in a winding manner.
The specific implementation process of this embodiment is as follows: firstly, a counterweight base 1 is fixed on a rotary structure of a crawler bed through a mounting bolt 13, then one end of a guy rope 6 is connected on a fixed pile 17, the other end of the guy rope is connected on a main hoisting drum 2 in a winding way, one end of a hoisting rope 11 is connected with a lifting hook in a winding way by bypassing a pulley block 12, the other end of the hoisting rope is connected on an auxiliary hoisting drum 10 in a winding way, finally, the main hoisting machine 3 and the auxiliary hoisting machine 9 are connected on a driving mechanism of a carrier, the installation can be completed, when the mast 5 hoists a heavy object, the main hoisting machine 3 drives the main hoisting drum 2 to roll up the guy rope 6, the angle of the mast 5 is adjusted by pulling the mast 5 to rotate along a fixed seat 4 through the fixed pile 17 of a top rod of the mast 5, so as to achieve the purpose of lifting the heavy object, the auxiliary hoisting machine 9 drives the auxiliary hoisting drum 10 to roll up the guy rope 11, the position, the auxiliary protection support structure not only provides variable amplitude power for the mast 5, saves energy consumption, but also plays a role in protection, and can be used as a second variable amplitude mechanism for hoisting operation when the variable amplitude mechanism of the mast 5 breaks down, thereby ensuring the normal use of the device.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.
Claims (6)
1. The utility model provides a crawler crane adjustable mast luffing mechanism which characterized in that: including counter weight base (1) and auxiliary cylinder (14), there is main hoist section of thick bamboo (2) counter weight base (1) top through the bolt fastening, main hoist section of thick bamboo (2) one side with counter weight base (1) has vice hoist section of thick bamboo (10) through the bolt fastening, keep away from vice hoist section of thick bamboo (10) main hoist section of thick bamboo (2) one side with counter weight base (1) welding has fixing base (4), keep away from fixing base (4) vice hoist section of thick bamboo (10) one side with counter weight base (1) welding has fixing base two (16), fixing base two (16) internal rotation is connected with auxiliary cylinder (14).
2. A crawler crane adjustable mast luffing mechanism according to claim 1, wherein: the side wall of the main hoisting drum (2) is rotatably connected with a main hoisting machine (3) through a shaft, the main hoisting machine (3) is connected with the counterweight base (1) through a bolt, and the side wall of the auxiliary hoisting drum (10) is rotatably connected with an auxiliary hoisting machine (9) through a shaft.
3. A crawler crane adjustable mast luffing mechanism according to claim 2, wherein: the main hoisting drum (2) is connected with a windlass rope (6) in a winding mode, and the auxiliary hoisting drum (10) is connected with a hoisting rope (11) in a winding mode.
4. A crawler crane adjustable mast luffing mechanism according to claim 3, wherein: the fixing seat I (4) is connected with a rotating shaft (8) in an inserting mode, the rotating shaft (8) is connected with a mast (5) in a rotating mode, a movable connecting block (15) is welded on one side wall of the mast (5), and the movable connecting block (15) is connected with the auxiliary oil cylinder (14) in a rotating mode.
5. An adjustable mast luffing mechanism for a crawler crane according to claim 4, wherein: an arm head assembly (7) is fixed at one end of the mast (5) through a bolt, a pulley block (12) is connected in the arm head assembly (7) in a rotating mode, and the hoisting rope (11) is connected with the pulley block (12) in a winding mode.
6. An adjustable mast luffing mechanism for a crawler crane according to claim 5, wherein: the top of the arm head assembly (7) is welded with a fixing pile (17), and the cable wind rope (6) is connected with the fixing pile (17) in a winding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911204307.2A CN110872066A (en) | 2019-11-29 | 2019-11-29 | Adjustable mast luffing mechanism of crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911204307.2A CN110872066A (en) | 2019-11-29 | 2019-11-29 | Adjustable mast luffing mechanism of crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110872066A true CN110872066A (en) | 2020-03-10 |
Family
ID=69718359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911204307.2A Pending CN110872066A (en) | 2019-11-29 | 2019-11-29 | Adjustable mast luffing mechanism of crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110872066A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2383828Y (en) * | 1999-08-14 | 2000-06-21 | 泰安市泰山工程机械制造有限公司 | Pipe crane |
| CN2466127Y (en) * | 2001-02-28 | 2001-12-19 | 徐州重型机械厂 | Gin pole for track crane |
| CN2723413Y (en) * | 2004-08-08 | 2005-09-07 | 鲍建 | Novel multifunction pipe hoist |
| CN101857176A (en) * | 2010-07-05 | 2010-10-13 | 三一汽车起重机械有限公司 | Super hoisting device and telescopic-boom hoisting equipment with same |
| CN204224145U (en) * | 2014-11-12 | 2015-03-25 | 东台市富康工程机械厂 | Crawler type frog leg hoisting crane |
| CN108100872A (en) * | 2017-10-14 | 2018-06-01 | 乐清日盛建设有限公司 | A kind of mechanical hoisting device |
| CN109879178A (en) * | 2017-12-06 | 2019-06-14 | 湖北省专用汽车研究院 | A kind of swing arm extension type gin pole |
-
2019
- 2019-11-29 CN CN201911204307.2A patent/CN110872066A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2383828Y (en) * | 1999-08-14 | 2000-06-21 | 泰安市泰山工程机械制造有限公司 | Pipe crane |
| CN2466127Y (en) * | 2001-02-28 | 2001-12-19 | 徐州重型机械厂 | Gin pole for track crane |
| CN2723413Y (en) * | 2004-08-08 | 2005-09-07 | 鲍建 | Novel multifunction pipe hoist |
| CN101857176A (en) * | 2010-07-05 | 2010-10-13 | 三一汽车起重机械有限公司 | Super hoisting device and telescopic-boom hoisting equipment with same |
| CN204224145U (en) * | 2014-11-12 | 2015-03-25 | 东台市富康工程机械厂 | Crawler type frog leg hoisting crane |
| CN108100872A (en) * | 2017-10-14 | 2018-06-01 | 乐清日盛建设有限公司 | A kind of mechanical hoisting device |
| CN109879178A (en) * | 2017-12-06 | 2019-06-14 | 湖北省专用汽车研究院 | A kind of swing arm extension type gin pole |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205151582U (en) | Novel rack and pinion luffing single -boom multipurpose stationary crane | |
| EP3153396A1 (en) | A main boom and a knuckle boom | |
| CN201647853U (en) | Full-hydraulic automobile crane | |
| CN203128062U (en) | Roof crane | |
| CN206033063U (en) | Electronic change width of cloth loop wheel machine | |
| US6669038B1 (en) | Self-propelled crane | |
| CN110872066A (en) | Adjustable mast luffing mechanism of crawler crane | |
| CN108975181A (en) | A kind of method for dismounting of derrick crane | |
| CN211419491U (en) | Lifting arm for forklift | |
| CN211393662U (en) | Tower arm amplitude-changing structure of crawler crane | |
| CN203199922U (en) | Device for improving loaded cornering stability of mobile crane | |
| CN109650272B (en) | Mast hoisting device | |
| CN204873603U (en) | Wheel crane | |
| CN201334337Y (en) | Manual crane | |
| JPH04341496A (en) | Device for housing hook for wheel crane | |
| CN111606201A (en) | Lifting appliance anti-swing system for gantry crane | |
| CN211769960U (en) | Electric hoisting unit device for continuous lifting tower crane section | |
| CN217756615U (en) | Multi-section lifting crane | |
| CN216971807U (en) | Balanced type efficient rotary crane | |
| CN104386592A (en) | Lorry-mounted crane special for railways | |
| CN209778086U (en) | Lifting appliance anti-swing system for gantry crane | |
| CN214192313U (en) | Insulating hoisting accessory is used to rail mounted crane | |
| CN220866967U (en) | Hoisting device | |
| CN212269283U (en) | Full-rotation mobile mast crane | |
| CN218879261U (en) | Limiting device of truck-mounted crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200310 |
|
| WD01 | Invention patent application deemed withdrawn after publication |