CN110642170A - Portable column type heavy object dragging device, method and application - Google Patents
Portable column type heavy object dragging device, method and application Download PDFInfo
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- CN110642170A CN110642170A CN201911070230.4A CN201911070230A CN110642170A CN 110642170 A CN110642170 A CN 110642170A CN 201911070230 A CN201911070230 A CN 201911070230A CN 110642170 A CN110642170 A CN 110642170A
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- heavy object
- winch
- anchoring
- portable column
- fixed seat
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004873 anchoring Methods 0.000 claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/04—Driving gear manually operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/02—Hoists or accessories for hoists
- B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention belongs to the technical field of engineering machinery, and particularly relates to a portable column type device and a method for dragging a heavy object and application of the portable column type device. The invention is formed by organically combining an anchoring support part, a fixed seat fixedly connected to the upper surface of the anchoring support part and a traction piece which is connected to the upper surface of the fixed seat and is used for connecting and pulling a heavy object. When needed, the anchoring ring and the movable pulley are added in the invention, so that the invention can drag heavy objects with larger weight. The invention has simple structure, saves time and labor when dragging the heavy object, and is stable and safe.
Description
Technical Field
The invention belongs to the technical field of engineering machinery, and particularly relates to a portable column type device and a method for dragging a heavy object and application of the portable column type device.
Background
In the production and transportation processes of some industries in the prior art, in order to drag some equipment or other heavy objects to a predetermined position, a large amount of manpower or large-scale machinery is often needed for traction, and the heavy objects can be moved to the predetermined position. However, in the carrying process, the risks of injuries such as slipping, falling, collision, accidental hitting of objects and the like often occur to the heavy objects, and the labor intensity is high and the working efficiency is low.
Disclosure of Invention
The invention provides a portable column type device, a method and application for dragging a heavy object, and aims to provide a device and a method for dragging the heavy object, which can safely, labor-saving, stably and efficiently replace manpower to drag the heavy object to a preset position.
In order to achieve the purpose, the invention adopts the technical scheme that:
a portable column type device for dragging heavy objects comprises
The anchoring and supporting part is fixed on the supporting part,
the fixing seat is fixedly connected to the upper surface of the anchoring supporting part;
the traction piece is connected to the upper surface of the fixed seat and used for being connected with a heavy object and drawing the heavy object.
The fixed flange is horizontally connected to the upper surface of the anchoring support part; the anchoring support part is of a columnar structure.
The device also comprises an anchoring ring and a movable pulley; the anchor ring is connected on the fixed seat, and the movable pulley is connected on the traction piece.
The traction piece is a winch, a steel wire rope is connected to the winch, and the front end of the steel wire rope is connected with a hook.
The winch is a hand winch, and a winch crank is connected to the hand winch; the traction force of the winch is 0.3-1 ton.
The traction force of the hand winch is 0.5 ton.
The anchoring supporting part is formed by welding with the fixed seat, and the axial center line of the anchoring supporting part is vertical to the surface of the fixed seat.
The surface of the fixed seat is provided with a connecting through hole, and the traction piece and the fixed seat are detachably connected through the connecting through hole and a bolt.
A method for dragging a heavy object by a portable column type heavy object dragging device comprises the following steps
The method comprises the following steps: fixing anchor support
Vertically and fixedly connecting the anchoring support part with the ground of the carrying site;
step two: connecting a heavy object to be dragged with a hook at the front end of a steel wire rope on a winch;
step three: and shaking a winch crank connected to the winch to finish the dragging and moving of the heavy object.
A portable column type heavy object dragging device is applied to dragging heavy objects during production and transportation.
Has the advantages that:
(1) the invention is fixed on the ground of the carrying site through the anchoring support part, so that the operation of the invention is safe.
(2) By using the winch, the invention saves time and labor when dragging the heavy object and has higher working efficiency.
(3) The invention is formed by organically combining the anchoring supporting part, the fixed seat fixedly connected to the upper surface of the anchoring supporting part and the traction piece which is connected to the upper surface of the fixed seat and is used for connecting and drawing the heavy object, and has simple structure and cost saving.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to clearly understand the technical solutions of the present invention and to implement the technical solutions according to the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a state diagram of the use of the present invention;
fig. 3. Is the structural schematic diagram II of the invention.
In the figure: 1-anchoring a support; 2-fixing a flange plate; 3-a winch; 4-a steel wire rope; 5-hooking; 6-winch crank; 7-a chain; 8-ground; 9-traction steel wires; 10-an anchoring ring; 11-a movable pulley; 12-weight.
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. 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.
The first embodiment is as follows:
a portable pole-type device for towing heavy objects, as shown in figure 1, comprises
The anchoring of the support 1 is carried out,
the fixed seat is fixedly connected to the upper surface of the anchoring support part 1;
the traction piece is connected to the upper surface of the fixed seat and used for being connected with a heavy object and drawing the heavy object.
In actual use, firstly, the anchoring support part 1 is vertically and fixedly connected with the ground 8 of a carrying site; then connecting the heavy object to be dragged with the traction piece; the dragging movement of the heavy object can be finished by starting the dragging piece.
In a specific application, the anchor support 1 is first fixedly connected to the floor 8 of the transportation site. In this embodiment, the fixed anchoring support part 1 is drilled on the ground 8 of the carrying site, then the anchoring support part 1 is put into the ground, and then the sealing is performed for fixation, and when the weight of the dragged heavy object is large, the mode for fixing the anchoring support part 1 has a good effect. When the weight component of the towed object is not large, the anchor support 1 may be fixed to the ground 8 of the transportation site by bolts. The anchoring support part 1 and the ground 8 of the carrying site can be fixed in various ways as long as the anchoring support part is firmly fixed, and the safety of dragging heavy objects is ensured.
The invention has simple structure, saves time and labor when dragging heavy objects and has higher working efficiency.
Example two:
according to a portable column type heavy object dragging device shown in the figure 1, the difference from the embodiment I is that: the fixing seat adopts a fixing flange plate 2, and the fixing flange plate 2 is horizontally connected to the upper surface of the anchoring supporting part 1; the anchoring support part 1 is a columnar structure.
When in actual use, the fixing seat adopts the technical scheme of the fixing flange plate 2, the fixed connection of the traction piece is convenient, and meanwhile, the cost is saved due to the convenience of material drawing of the fixing flange plate 2.
In practical use, the anchoring support part 1 adopts the technical scheme of a columnar structure, so that the safety and the stability of the invention are ensured, the volume of the invention is smaller, and the invention is convenient to use in different environments.
When the portable multifunctional desk is used specifically, the cylindrical body structure can be a cylinder or a cuboid, and on the basis of ensuring stability, a cavity can be arranged in the center of the cylindrical body structure, so that the weight of the portable multifunctional desk is reduced, and the portable multifunctional desk is convenient to move, carry and use. According to the environment and the actual condition of dragging the heavy object, the cylindrical or cuboid anchoring support part 1 can be further provided with a reinforced inclined strut, so that the safe use of the heavy object dragging device is ensured when the heavy object dragging device drags the heavy object 12.
Example three:
according to a portable column type heavy object dragging device shown in fig. 1 and 3, the difference from the first embodiment is that: the device also comprises an anchoring ring 10 and a movable pulley 11; the anchoring ring 10 is connected to the fixed seat, and the movable pulley 11 is connected to the traction piece.
When in actual use, the anchoring ring 10 is connected on the fixing seat, the main function is to provide an anchoring point for the steel wire rope, when the required pulling force is increased by 1 time, only one end of the hook 5 of the steel wire rope 4 on the traction piece needs to be pulled back to be hung on the anchoring ring 10, the movable pulley 11 is hung on the steel wire rope 4 of the traction piece, at the moment, the winch is shaken, the hook 5 on the movable pulley 11 generates the pulling force which is one time greater than the original pulling force, and the heavy object 12 is easily moved.
Example four:
according to a portable column type heavy object dragging device shown in the figure 1, the difference from the embodiment I is that: the traction piece is a winch 3, a steel wire rope 4 is connected to the winch 3, and a hook 5 is connected to the front end of the steel wire rope 4.
During the actual use, be connected couple 5 with waiting to pull the heavy object, then start capstan winch 3, just can be convenient will wait to pull the heavy object antedisplacement. The technical scheme of the winch 3 is adopted by the traction piece, so that the invention is time-saving and labor-saving.
In this embodiment, the winch 3 and the wire rope 4 are connected by a connection method in the prior art.
Example five:
according to a portable column type heavy object dragging device shown in the figure 1, the difference from the embodiment four is that: the winch 3 is a hand winch, and a winch crank 6 is connected to the hand winch; the traction force of the winch is 0.3-1.
Preferably, the traction force of the hand winch is 0.5.
When in actual use, the winch 3 adopts a hand winch, when the winch 3 needs to be started, the pulling of the heavy object can be completed as long as the winch crank 6 is shaken, the operation is convenient and labor-saving, and the use cost is lower.
The traction force of the hand winch adopts the technical scheme of 0.3-1 ton, so that the hand winch can safely drag heavy objects.
When a movable pulley traction mode is adopted, the tension of the invention can be increased by 1 time.
Example six:
according to a portable column type heavy object dragging device shown in the figure 1, the difference from the embodiment I is that: the anchoring support part 1 is formed by welding with the fixed seat, and the axial center line of the anchoring support part 1 is vertical to the surface of the fixed seat.
When the device is actually used, the anchoring supporting part 1 and the fixed seat are formed by welding, so that the stability of the device is ensured; the axial center line of the anchoring support part 1 is vertical to the surface of the fixed seat, so that the heavy object towing device saves labor when towing heavy objects, is uniformly stressed and is not easy to damage, and the service life of the heavy object towing device is effectively prolonged.
Example seven:
according to a portable column type heavy object dragging device shown in the figure 1, the difference from the embodiment I is that: the surface of the fixed seat is provided with a connecting through hole, and the traction piece and the fixed seat are detachably connected through the connecting through hole and a bolt.
When in actual use, the fixing seat adopts the technical scheme, so that the traction piece and the fixing seat are convenient to disassemble and install.
Example eight:
a method for dragging a heavy object by a portable column type heavy object dragging device comprises the following steps
The method comprises the following steps: fixing anchor support 1
Vertically and fixedly connecting the anchoring support part 1 with the ground 8 of the carrying site;
step two: connecting a heavy object to be dragged with a hook at the front end of a steel wire rope 4 on a winch 3;
step three: and the winch crank 6 connected with the winch 3 is shaken, so that the dragging and moving of the heavy object can be completed.
The invention conveniently, time-saving, labor-saving and safely finishes the dragging and moving of the heavy object through three steps.
Example nine:
a portable column type heavy object dragging device is applied to dragging heavy objects during production and transportation.
Taking the operation of replacing the transmission chain on the drilling site as an example, as shown in fig. 2, the operation is an overhead operation (2.5 meters) near the edge, if the prior art is adopted, because one chain 7 is very heavy (300 plus 500 kilograms), 6 persons are required to pull the chain 7 with force at least to complete the replacement, and the operation is required to be performed at the high altitude, and the engine oil taken out from the transmission case in the process of replacing the chain 7 can cause the feet of the operator to slip, so that the falling and collision injuries are easily caused, and the safety risk is high, the efficiency is low, and the labor intensity is high.
By adopting the technical scheme of the invention for operation, the number of operators is reduced to 3, wherein 1 person is responsible for shaking the winch, the other 2 persons are responsible for threading the steel wire rope, and the dragging operation can be completed at a low position on the ground. The specific process is as follows:
the traction steel wire 9 of the invention is connected with one end of the detached chain 7, the traction steel wire 9 is connected with the hook 5, and an operator shakes the winch crank 6 and the traction chain 7 by the force of one hand to pull the winch crank out of the transmission case. When the chain 7 is installed and traction is needed, the operation is reversed, and the installation of the chain 7 can be completed.
By adopting the technical scheme, the labor is greatly reduced, and the dragging of the heavy object is efficiently and safely completed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
In the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
The foregoing is illustrative of the preferred embodiments of the present invention, and the present invention is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a heavy object device is dragged to portable column which characterized in that: comprises that
An anchoring support (1),
the fixing seat is fixedly connected to the upper surface of the anchoring supporting part (1);
the traction piece is connected to the upper surface of the fixed seat and used for being connected with a heavy object and drawing the heavy object.
2. A portable column-style towed weight apparatus as defined in claim 1, wherein: the fixed base adopts a fixed flange disc (2), and the fixed flange disc (2) is horizontally connected to the upper surface of the anchoring support part (1); the anchoring support part (1) is of a columnar structure.
3. A portable column-style towed weight apparatus as defined in claim 1, wherein: the device also comprises an anchoring ring (10) and a movable pulley (11); the anchoring ring (10) is connected to the fixed seat, and the movable pulley (11) is connected to the traction piece.
4. A portable column-style towed weight apparatus as defined in claim 1, wherein: the traction piece is a winch (3), a steel wire rope (4) is connected to the winch (3), and a hook (5) is connected to the front end of the steel wire rope (4).
5. A portable column-style towed weight apparatus as defined in claim 4, wherein: the winch (3) is a hand winch, and a winch crank (6) is connected to the hand winch; the traction force of the winch is 0.3-1 ton.
6. A portable column-style towed weight apparatus as defined in claim 5, wherein: the traction force of the hand winch is 0.5 ton.
7. A portable column-style towed weight means as claimed in claim 1 or 2, wherein: the anchoring support part (1) is formed by welding with the fixed seat, and the axial center line of the anchoring support part (1) is vertical to the surface of the fixed seat.
8. A portable column-style towed weight means as claimed in claim 1 or 2, wherein: the surface of the fixed seat is provided with a connecting through hole, and the traction piece and the fixed seat are detachably connected through the connecting through hole and a bolt.
9. A method for dragging a heavy object by a portable column type heavy object dragging device is characterized by comprising the following steps
The method comprises the following steps: fixed anchor support (1)
Vertically and fixedly connecting the anchoring support part (1) with the ground (8) of a carrying site;
step two: connecting a heavy object to be dragged with a hook at the front end of a steel wire rope (4) on a winch (3);
step three: and (3) shaking a winch crank (6) connected with the winch to finish the dragging and moving of the heavy object.
10. A portable column-type heavy object towing device as claimed in any one of claims 1 to 8, which is used for towing heavy objects during production and transportation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911070230.4A CN110642170B (en) | 2019-11-05 | 2019-11-05 | Portable column type heavy object dragging device, method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911070230.4A CN110642170B (en) | 2019-11-05 | 2019-11-05 | Portable column type heavy object dragging device, method and application |
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| Publication Number | Publication Date |
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| CN110642170A true CN110642170A (en) | 2020-01-03 |
| CN110642170B CN110642170B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911070230.4A Active CN110642170B (en) | 2019-11-05 | 2019-11-05 | Portable column type heavy object dragging device, method and application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178604A (en) * | 2022-07-01 | 2022-10-14 | 奥莱特汽车科技有限公司 | Ground suction type metal plate drawing machine |
| CN116038644A (en) * | 2022-12-22 | 2023-05-02 | 徐州重型机械有限公司 | Automatic scribing equipment and method for large-scale plate structural parts |
| WO2025185528A1 (en) * | 2024-03-07 | 2025-09-12 | 简贞创新科技(深圳)有限公司 | Towing apparatus |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201817212U (en) * | 2010-10-09 | 2011-05-04 | 倪玉增 | Heavy object elevator |
| CN102556877A (en) * | 2010-12-09 | 2012-07-11 | 倪玉增 | Weight hoister |
| CN202744222U (en) * | 2012-04-17 | 2013-02-20 | 奉化市飞宇电器制造有限公司 | Hand-operated upright column-type hydraulic crane |
| CN202953778U (en) * | 2012-12-20 | 2013-05-29 | 王新亮 | Free lifting traction system |
| CN203639112U (en) * | 2013-11-22 | 2014-06-11 | 中建一局集团第三建筑有限公司 | Heavy object moving device using pulley block for traction |
| CN205443968U (en) * | 2015-12-28 | 2016-08-10 | 厦门理工学院 | Tractive stop device during overpass jacking |
| CN209396793U (en) * | 2019-01-08 | 2019-09-17 | 重庆千牛建设工程有限公司 | A mast hoisting device |
| CN211110783U (en) * | 2019-11-05 | 2020-07-28 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Portable column type heavy object dragging device |
-
2019
- 2019-11-05 CN CN201911070230.4A patent/CN110642170B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201817212U (en) * | 2010-10-09 | 2011-05-04 | 倪玉增 | Heavy object elevator |
| CN102556877A (en) * | 2010-12-09 | 2012-07-11 | 倪玉增 | Weight hoister |
| CN202744222U (en) * | 2012-04-17 | 2013-02-20 | 奉化市飞宇电器制造有限公司 | Hand-operated upright column-type hydraulic crane |
| CN202953778U (en) * | 2012-12-20 | 2013-05-29 | 王新亮 | Free lifting traction system |
| CN203639112U (en) * | 2013-11-22 | 2014-06-11 | 中建一局集团第三建筑有限公司 | Heavy object moving device using pulley block for traction |
| CN205443968U (en) * | 2015-12-28 | 2016-08-10 | 厦门理工学院 | Tractive stop device during overpass jacking |
| CN209396793U (en) * | 2019-01-08 | 2019-09-17 | 重庆千牛建设工程有限公司 | A mast hoisting device |
| CN211110783U (en) * | 2019-11-05 | 2020-07-28 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Portable column type heavy object dragging device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178604A (en) * | 2022-07-01 | 2022-10-14 | 奥莱特汽车科技有限公司 | Ground suction type metal plate drawing machine |
| CN116038644A (en) * | 2022-12-22 | 2023-05-02 | 徐州重型机械有限公司 | Automatic scribing equipment and method for large-scale plate structural parts |
| WO2025185528A1 (en) * | 2024-03-07 | 2025-09-12 | 简贞创新科技(深圳)有限公司 | Towing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110642170B (en) | 2023-10-03 |
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Effective date of registration: 20211019 Address after: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Address before: Room 1902, Changqing building, 151 Weiyang Road, Xi'an, Shaanxi 710018 Applicant before: CNPC CHUANQING DRILLING ENGINEERING CO., LTD. CHANGQING WELL DRILLING GENERAL Co. |
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