CN111043489A - Vertical lifting mechanism - Google Patents
Vertical lifting mechanism Download PDFInfo
- Publication number
- CN111043489A CN111043489A CN201911270161.1A CN201911270161A CN111043489A CN 111043489 A CN111043489 A CN 111043489A CN 201911270161 A CN201911270161 A CN 201911270161A CN 111043489 A CN111043489 A CN 111043489A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- flange
- hydraulic cylinders
- drag chain
- top flange
- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 64
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a vertical lifting mechanism, which adopts two multi-section hydraulic cylinders to complete lifting, uses a multi-section large sleeve, and adopts a method of controlling the clearance between the sleeves and reasonably fixing the sleeves to keep the rigidity of the lifting mechanism. The mechanism is fully extended, the total length exceeds 10 meters, the load reaches 3 tons, under the state that the two locking holes lock the mechanism, the side force is increased at the top end, and the deviation angle of the mechanism is not more than 5'. The mechanism is suitable for heavy load, and has the advantages of high lifting height, large anti-overturning force, high lateral keeping precision and the like.
Description
Technical Field
The invention belongs to the technical field of mechanical electronics, and relates to a design of a vertical lifting mechanism, which can be applied to the fields of military industry, civil product lifting and the like.
Background
The lifting height of a common heavy-load lifting mechanism is not high; the wind resistance is not strong; the mechanism has large deformation and large internal clearance, so that the positioning precision of the mechanism is not high. At present some equipment weight constantly increase, require moreover by this vertical lift's height and increasingly high, simultaneously the anti-wind ability reinforce, keep the precision high. In order to meet the requirement, the invention provides a large vertical lifting mechanism which can meet the requirement.
Disclosure of Invention
Technical problem to be solved
In order to avoid the defects of the prior art, the invention provides a vertical lifting mechanism.
Technical scheme
A vertical lifting mechanism is characterized by comprising a top flange, a multi-section hydraulic cylinder, a drag chain, a first sleeve, a middle flange, a second sleeve, a bottom flange, a pushing shaft, a cable protection frame, a third sleeve and a rotating shaft; the first sleeve is arranged in the second sleeve, a top flange is arranged on the first sleeve, the top flange is connected with a plurality of sections of hydraulic cylinders, the hydraulic cylinders drive the top flange, so that the first sleeve slides in the second sleeve, and a sliding pair is arranged between the first sleeve and the second sleeve; the second sleeve is arranged in the third sleeve, a middle flange is arranged on the second sleeve and is simultaneously connected with a plurality of hydraulic cylinders, the hydraulic cylinders drive the middle flange, so that the second sleeve slides in the third sleeve, and a sliding pair is arranged between the second sleeve and the third sleeve; one end of the drag chain is connected with the top flange, the other end of the drag chain is connected with the bottom flange after penetrating through the middle flange, and the cable protection frame is arranged outside the third sleeve and used for protecting the drag chain; a pushing shaft and a rotating shaft for mechanism turnover are arranged on the third sleeve; the third sleeve is provided with a locking hole for fixing the mechanism when the mechanism is lifted in place, and the rigidity of the mechanism is kept.
One surface of the sliding pair is ground smooth by chromium plating, and the other surface is ground smooth by copper spraying.
Advantageous effects
The invention provides a vertical lifting mechanism which is characterized in that ① the lifting weight of the vertical lifting mechanism is more than 3 tons, ② the vertical lifting mechanism is more than 10 meters in height, ③ the length is less than 4 meters when being completely retracted, ④ can bear larger lateral force, the top end of the vertical lifting mechanism deforms little, ⑤ can conveniently and reliably wire, ⑥ the vertical lifting mechanism is simple in structure and reliable in performance, the ⑦ mechanism is convenient to carry on a vehicle when being overturned to be about 1.2 meters in height, and a ⑧ sensor gives the telescopic position of the vertical lifting mechanism, so that automatic control is facilitated.
Drawings
FIG. 1 is a schematic view of the present vertical lift mechanism fully extended.
Fig. 2 is a schematic view of the present vertical lift mechanism after it is fully retracted.
Fig. 3 is a schematic diagram of the vertical lift mechanism after being turned over.
FIG. 4 is a schematic view of a sliding pair between sleeves
Detailed Description
The invention will now be further described with reference to the following examples and drawings:
a detailed description will be given of a specific embodiment of the vertical lift mechanism with reference to fig. 1, 2, 3, and 4.
The invention comprises a top flange 1, a multi-section hydraulic cylinder 2, a drag chain 3, a first sleeve 4, a middle flange 5, a second sleeve 6, a bottom flange 7, a pushing shaft 8, a cable protection frame 9, a third sleeve 10, a rotating shaft 11 and a locking hole 12.
The first sleeve 4 is arranged in the second sleeve 6, and the top flange 1 is arranged on the first sleeve and connected with the multi-section hydraulic cylinder 2. The multi-section hydraulic cylinder 2 drives the top flange 1, so that the first sleeve 4 slides inside the second sleeve 6, and a sliding pair is arranged in the middle. The second sleeve 6 is arranged in the third sleeve 10, and the middle flange 5 is arranged on the second sleeve 6 and is connected with the multiple sections of hydraulic cylinders 2. The multi-section hydraulic cylinder 2 drives the middle flange 5, so that the second sleeve 6 slides inside the third sleeve 10, and a sliding pair is arranged in the middle. The cable protection frame 9 is mounted outside the third sleeve 10. The third sleeve 10 is provided with a pushing shaft 8 and a rotating shaft 1 for mechanism overturning, and the sleeve 10 is provided with a locking hole 12 for fixing the mechanism when the mechanism is lifted to the position, so that the rigidity of the mechanism is kept.
The top flange 1 is mounted on the upper part of the first sleeve 4 for mounting working equipment, such as electronic equipment like a radar antenna.
The sliding pair between the second sleeve 6 and the third sleeve 10, and the sliding pair between the first sleeve 4 and the second sleeve 6, are shown in fig. 4. The sliding pair adopts two matching surfaces, one surface of the sliding pair is smooth by chrome plating and the other surface is smooth by copper spraying and polishing, and a copper spraying surface 13 is formed. The outer surface of the first sleeve 4, the inner and outer surfaces of the second sleeve 6 and the inner surface of the third sleeve 10 are all plated with chromium and are ground smooth, and the step surface is ground smooth by copper spraying. The sliding pair adopts precise matching and longer guide length, thereby controlling the clearance between the sleeves and ensuring that the mechanism has small deflection angle when bearing side load.
The first sleeve 4, the second sleeve 6 and the third sleeve 10 are formed by steel plate roll welding and are processed, thin-wall structures are adopted, and the same materials are adopted to prevent inconsistent temperature linear expansion, so that clamping stagnation possibly caused by clearance change of sliding pairs is avoided.
In order to prevent that the dust from getting into the slip pair, dust ring is all installed in the cooperation between first sleeve 4 and second sleeve 6, second sleeve 6 and the third sleeve 10, and inside cavity is airtight structure, prevents because the foreign matter jamming between the sleeve. A pull rope type displacement sensor is arranged in the closed cavity to measure the telescopic position of the mechanism, so that the detection and the automatic control are facilitated.
The kinematic pairs among the first sleeve 4, the second sleeve 6 and the third sleeve 10 adopt precise matching, lubricating measures are adopted among the kinematic pairs, the surfaces of the kinematic pairs are polished smooth by chromium plating and polished smooth by copper spraying, so that friction is reduced, corrosion is prevented, and meanwhile, the reliability of movement is improved by adopting a dustproof ring and a closed structure.
The vertical lifting mechanism is characterized in that a top flange and a middle flange are driven to move upwards by two multi-section hydraulic cylinders to drive a second sleeve and a third sleeve to extend outwards, and the mechanism is converted from a withdrawing state to an extending state. The reason for the hydraulic cylinders being arranged outside the sleeves is to facilitate maintenance while increasing the rigidity of the whole mechanism.
The top flange and the middle flange drive the drag chain to move outwards in the moving process until the state that the drawing 1 is completely extended out. The cable and the hydraulic oil pipe can be fixed in the drag chain and move along with the drag chain to complete the connection of the upper and lower lines of the mechanism and the hydraulic loop.
The third sleeve 10 is provided with a rotating shaft 11 and a pushing shaft 8, when the vertical lifting mechanism is completely retracted, the pushing force pushes the shaft 8, the mechanism can rotate around the rotating shaft 11, the mechanism is turned over, and therefore the height of the mechanism is reduced, as shown in fig. 3.
The third sleeve 10 is provided with two locking holes 12, and when the mechanism works vertically, a locking bolt is inserted into the mechanism, so that the mechanism is locked, and the rigidity of the mechanism is effectively improved.
The mechanism can be lifted and retracted, and an interface of the fixing mechanism is arranged after the mechanism is lifted in place; meanwhile, the mechanism is provided with an overturning interface, so that the wiring and the pipe arrangement are convenient, the transportation is convenient, the structure is simple, and the performance is reliable.
The mechanism adopts two multi-section hydraulic cylinders to complete lifting, uses multi-section large sleeves (the diameter of each sleeve exceeds half meter), and adopts control of the clearance between the sleeves and reasonable fixation of the sleeves to keep the rigidity of the lifting mechanism. The mechanism is fully extended, the total length exceeds 10 meters, the load reaches 3 tons, under the state that the two locking holes 12 lock the mechanism, the side force (8000N is vertical to the side load of the lifting rod) increased at the top end, and the deviation angle of the mechanism is not more than 5'. The mechanism is suitable for heavy load, and has the advantages of high lifting height, large anti-overturning force, high lateral keeping precision and the like.
Claims (2)
1. A vertical lifting mechanism is characterized by comprising a top flange (1), a plurality of hydraulic cylinders (2), a drag chain (3), a first sleeve (4), a middle flange (5), a second sleeve (6), a bottom flange (7), a pushing shaft (8), a cable protection frame (9), a third sleeve (10) and a rotating shaft (11); the first sleeve (4) is arranged inside the second sleeve (6), the top flange (1) is arranged on the first sleeve (4), the top flange (1) is connected with the multiple hydraulic cylinders (2), the multiple hydraulic cylinders (2) drive the top flange (1), so that the first sleeve (4) slides inside the second sleeve (6), and a sliding pair is arranged between the first sleeve and the second sleeve; the second sleeve (6) is arranged inside the third sleeve (10), the middle flange (5) is arranged on the second sleeve (6) and is connected with the multiple sections of hydraulic cylinders (2), the multiple sections of hydraulic cylinders (2) drive the middle flange (5), so that the second sleeve (6) slides inside the third sleeve (10), and a sliding pair is arranged between the second sleeve and the third sleeve; one end of the drag chain (3) is connected with the top flange (1), the other end of the drag chain penetrates through the middle flange (5) and is connected with the bottom flange (7), and the cable protection frame (9) is installed outside the third sleeve (10) and is used for protecting the drag chain (3); a pushing shaft (8) and a rotating shaft (1) for overturning the mechanism are arranged on the third sleeve (10); the third sleeve (10) is provided with a locking hole (12) for fixing the mechanism when the mechanism is lifted to the proper position, and the rigidity of the mechanism is kept.
2. A vertical lift mechanism according to claim 1 wherein one surface of said sliding pair is smooth by chrome plating and the other surface is smooth by copper plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911270161.1A CN111043489A (en) | 2020-02-23 | 2020-02-23 | Vertical lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911270161.1A CN111043489A (en) | 2020-02-23 | 2020-02-23 | Vertical lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111043489A true CN111043489A (en) | 2020-04-21 |
Family
ID=70235834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911270161.1A Pending CN111043489A (en) | 2020-02-23 | 2020-02-23 | Vertical lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111043489A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113321073A (en) * | 2021-05-25 | 2021-08-31 | 北京无线电测量研究所 | Lifting tower cable routing device, use method thereof and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390791A (en) * | 2011-11-07 | 2012-03-28 | 中国重型机械研究院有限公司 | Multistage mechanical flexible thruster |
| CN202245913U (en) * | 2011-07-26 | 2012-05-30 | 杨宏 | Multi-level pin-attached lifting mechanism |
| CN103075613A (en) * | 2013-01-10 | 2013-05-01 | 辽宁鑫丰矿电设备制造有限公司 | Roadway work surface hydraulic roof connecting device |
| CN104157953A (en) * | 2014-08-07 | 2014-11-19 | 西安电子工程研究所 | Double-parallelogram connecting rod lifting mechanism |
| CN209940353U (en) * | 2019-04-26 | 2020-01-14 | 安徽万荣航天设备有限公司 | Sleeve type telescopic device for aerospace instrument |
-
2020
- 2020-02-23 CN CN201911270161.1A patent/CN111043489A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202245913U (en) * | 2011-07-26 | 2012-05-30 | 杨宏 | Multi-level pin-attached lifting mechanism |
| CN102390791A (en) * | 2011-11-07 | 2012-03-28 | 中国重型机械研究院有限公司 | Multistage mechanical flexible thruster |
| CN103075613A (en) * | 2013-01-10 | 2013-05-01 | 辽宁鑫丰矿电设备制造有限公司 | Roadway work surface hydraulic roof connecting device |
| CN104157953A (en) * | 2014-08-07 | 2014-11-19 | 西安电子工程研究所 | Double-parallelogram connecting rod lifting mechanism |
| CN209940353U (en) * | 2019-04-26 | 2020-01-14 | 安徽万荣航天设备有限公司 | Sleeve type telescopic device for aerospace instrument |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113321073A (en) * | 2021-05-25 | 2021-08-31 | 北京无线电测量研究所 | Lifting tower cable routing device, use method thereof and vehicle |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200421 |