CN111410135B - Jack with fine adjustment and locking functions - Google Patents
Jack with fine adjustment and locking functions Download PDFInfo
- Publication number
- CN111410135B CN111410135B CN202010242940.7A CN202010242940A CN111410135B CN 111410135 B CN111410135 B CN 111410135B CN 202010242940 A CN202010242940 A CN 202010242940A CN 111410135 B CN111410135 B CN 111410135B
- Authority
- CN
- China
- Prior art keywords
- screw
- jack
- piston rod
- reciprocating nut
- bearing
- 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.)
- Active
Links
Images
Classifications
-
- 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
- B66F3/25—Constructional features
- B66F3/30—Constructional features with positive brakes or locks
-
- 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
- B66F3/43—Pyrotechnical jacks
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Actuator (AREA)
Abstract
The invention discloses a jack with a fine adjustment and locking function, which belongs to the technical field of jacks and comprises a piston rod, a guide sleeve, a check ring, a reciprocating nut, a spring quick-release pin, a screw, a dustproof bearing and an outer barrel, wherein the guide sleeve presses the check ring to be installed on the outer barrel in a sealed pipe thread mode, the piston rod is arranged in the outer barrel, the reciprocating nut is installed on the piston rod, the reciprocating nut is provided with a screw hole, the screw is installed in the screw hole, the screw is provided with a limiting hole, the spring quick-release pin is installed in the limiting hole, and the dustproof bearing is installed on the inner side of the reciprocating nut in an interference fit mode. The invention integrates stroke fine adjustment and reliable locking, and simultaneously realizes low cost, high reliability and high environmental adaptability of the equipment.
Description
Technical Field
The invention relates to the technical field of jacks, in particular to a jack with a fine adjustment and locking function.
Background
At present, the plane needs to be supported by a jack to complete operations such as horizontal measurement, target correction, equipment disassembly and assembly in scientific research, production, test flight and daily use. The operations of horizontal measurement, target correction and the like are that the ground attitude of the airplane is adjusted in a three-point supporting mode through a group of three jacks. The traditional aviation hydraulic jack adjusts the jacking height of the jack through opening and closing of a hydraulic pump and an oil return valve and the self gravity of an airplane, has poor adjustment precision and long operation time consumption, and has higher requirements on the matching of an operation team.
Aiming at the defects of the traditional aviation hydraulic jack, the electrically-driven screw jack is applied to horizontal measurement and target calibration work, the jack is provided with a servo motor and a laser/stay wire displacement sensor, and the servo motor is controlled by stroke feedback through the laser/stay wire displacement sensor to realize the accurate adjustment of the actuating distance of the jack. The equipment has high cost, has higher requirements on the use environment compared with the traditional hydraulic jack, and can not be used in the environments with large vibration, sand dust, oil stain and side wind.
Disclosure of Invention
The invention provides a jack with a fine adjustment and locking function, which integrates fine travel adjustment and reliable locking, meets the requirements of horizontal measurement, target calibration, equipment disassembly and assembly and other work of a certain type of unmanned aerial vehicle, and simultaneously realizes low cost, high reliability and high environmental adaptability of equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a jack with fine tuning and locking function which characterized in that: including piston rod, uide bushing, retaining ring, reciprocal nut, spring quick-release round pin, screw, dust bearing and urceolus, the uide bushing is pushed down the retaining ring and is installed on the urceolus with the form of sealed pipe thread, be provided with the piston rod in the urceolus, reciprocal nut is installed on the piston rod, be provided with the screw hole on the reciprocal nut, the mounting screw is in the screw hole, be provided with spacing hole on the screw, the spring quick-release round pin is installed in spacing hole, dust bearing is installed with interference fit's form to reciprocal nut inboard.
Preferably, the jack is further provided with an oil return valve.
Preferably, the dustproof bearing is a ball bearing.
The working principle is as follows:
after the piston rod reachd the jacking height, aircraft leveling point appears in the surveyor's level eyepiece promptly, revolves reciprocal nut to laminating uide bushing upper surface, extracts spring quick-release round pin then twists the screw, and dust bearing and retaining ring coincidence are gone up to the level projection face this moment, realize the locking of jack, can carry out the fine setting operation of piston rod height after opening aviation hydraulic jack's return valve, and the theory of operation is as follows:
1. the reciprocating nut is pulled towards the jacking direction, the nut descends along the trapezoidal thread on the piston rod and is pressed on the guide sleeve, the guide sleeve provides upward force, and the reciprocating nut acts on the piston through the trapezoidal thread to enable the piston rod to ascend;
2. the reciprocating nut is pulled in the descending direction, the nut rises along the trapezoidal thread on the piston rod to drive the screw and the dustproof bearing to rise together, the dustproof bearing is blocked by the check ring after rising a small section of idle stroke, the check ring is pressed on the outer barrel by the guide sleeve to provide downward force, the force is transmitted to the screw by the dustproof bearing, then is transmitted to the reciprocating nut, and finally is transmitted to the piston rod through the trapezoidal thread, so that the piston rod descends.
The beneficial effects of this technical scheme are as follows:
according to the jack with the fine adjustment and locking functions, the oil return valve is closed before jacking, the oil return valve is opened when descending, and the dustproof bearing is arranged, so that the jack can be used in environments with large vibration, sand dust, oil stain and crosswind, and the service environment of the jack is greatly improved. Reciprocating nut, retaining ring and the screw, dust bearings and the spring quick-release pin that set up on the reciprocating nut, the retaining ring supports the power source as jack when forcing to descend for this jack adjustment accuracy is high, and the operation is weak point consuming time, and is lower to operation team's cooperation. The invention integrates stroke fine adjustment and reliable locking, meets the requirements of horizontal measurement, target correction, equipment disassembly and assembly and the like of a certain unmanned aerial vehicle, and simultaneously realizes low cost, high reliability and high environmental adaptability of the equipment.
Drawings
To further illustrate the above implementation of the present invention, the present invention is further described below with reference to the accompanying drawings and examples.
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic structural view of a piston rod of the hydraulic cylinder in a raised state;
FIG. 3 is a schematic structural diagram of a piston rod downloading state of the hydraulic cylinder;
in the above drawings: 1. the piston rod, 2, the guide sleeve, 3, the retainer ring, 4, the reciprocating nut, 5, the spring quick-release pin, 6, the screw, 7, the dustproof bearing, 8, the outer cylinder and 9, the oil return valve.
Detailed Description
The method of the present invention will be further described with reference to the drawings and examples, but the present invention is not limited to the examples.
Example 1
As a most basic embodiment of the invention, the embodiment discloses a visual auxiliary part clamping workbench for a production line, as shown in fig. 1-3, comprising a piston rod 1, a guide sleeve 2, a retainer ring 3, a reciprocating nut 4, a quick spring release pin 5, a screw 6, a dustproof bearing 7 and an outer cylinder 8, wherein the guide sleeve 2 presses the retainer ring 3 to be installed on the outer cylinder 8 in a sealing pipe thread manner, the piston rod 1 is arranged in the outer cylinder 8, the reciprocating nut 4 is installed on the piston rod 1, the reciprocating nut 4 is provided with a screw 6 hole, the screw 6 is installed in the screw 6 hole, the screw 6 is provided with a limit hole, the quick spring release pin 5 is installed in the limit hole, and the inner side of the reciprocating nut 4 is provided with the dustproof bearing 7 in an interference fit manner.
The working principle is as follows:
after piston rod 1 reachd the jacking height, aircraft leveling point appears in the spirit level eyepiece promptly, revolves reciprocal nut 4 to 2 upper surfaces of laminating uide bushing, extracts spring quick-release round pin 5 then twists screw 6, and dust bearing 7 and retaining ring 3 coincidence are gone up to the level projection face this moment, realize the locking of jack, can carry out the fine setting operation of piston rod 1 height after opening aviation hydraulic jack's time return valve 9, and the theory of operation is as follows:
1. the reciprocating nut 4 is pulled towards the jacking direction, the nut descends along the trapezoidal thread on the piston rod 1 and presses on the guide sleeve 2, the guide sleeve 2 provides upward force, and the reciprocating nut 4 acts on the piston through the trapezoidal thread to enable the piston rod 1 to ascend;
2. the reciprocating nut 4 is pulled in the descending direction, the nut ascends along the trapezoidal threads on the piston rod 1 to drive the screw 6 and the dustproof bearing 7 to ascend together, the dustproof bearing 7 ascends for a small section of idle stroke and then is blocked by the check ring 3, the check ring 3 is pressed on the outer barrel 8 by the guide sleeve 2 to provide downward force, the force is transmitted to the screw 6 through the dustproof bearing 7 and then is transmitted to the reciprocating nut 4, and finally is transmitted to the piston rod 1 through the trapezoidal threads, and the descending of the piston rod 1 is realized.
Example 2
As a preferred embodiment of the present invention, the present embodiment discloses a production line visual auxiliary part clamping workbench, as shown in fig. 1 to fig. 3, the workbench includes a piston rod 1, a guide sleeve 2, a retainer ring 3, a reciprocating nut 4, a quick spring release pin 5, a screw 6, a dustproof bearing 7 and an outer cylinder 8, the guide sleeve 2 presses the retainer ring 3 to be installed on the outer cylinder 8 in a form of a sealed pipe thread, the piston rod 1 is disposed in the outer cylinder 8, the reciprocating nut 4 is installed on the piston rod 1, the reciprocating nut 4 is provided with a screw 6 hole, the screw 6 is installed in the screw 6 hole, the screw 6 is provided with a limit hole, the quick spring release pin 5 is installed in the limit hole, and the inner side of the reciprocating nut 4 is provided with the dustproof bearing 7 in an interference fit manner.
Preferably, the jack is also provided with an oil return valve 9.
Preferably, the dust bearing 7 is a ball bearing.
The working principle is as follows:
after piston rod 1 reachd the jacking height, aircraft leveling point appears in the spirit level eyepiece promptly, revolves reciprocal nut 4 to 2 upper surfaces of laminating uide bushing, extracts spring quick-release round pin 5 then twists screw 6, and dust bearing 7 and retaining ring 3 coincidence are gone up to the level projection face this moment, realize the locking of jack, can carry out the fine setting operation of piston rod 1 height after opening aviation hydraulic jack's time return valve 9, and the theory of operation is as follows:
1. the reciprocating nut 4 is pulled towards the jacking direction, the nut descends along the trapezoidal thread on the piston rod 1 and presses on the guide sleeve 2, the guide sleeve 2 provides upward force, and the reciprocating nut 4 acts on the piston through the trapezoidal thread to enable the piston rod 1 to ascend;
2. the reciprocating nut 4 is pulled in the descending direction, the nut ascends along the trapezoidal threads on the piston rod 1 to drive the screw 6 and the dustproof bearing 7 to ascend together, the dustproof bearing 7 ascends for a small section of idle stroke and then is blocked by the check ring 3, the check ring 3 is pressed on the outer barrel 8 by the guide sleeve 2 to provide downward force, the force is transmitted to the screw 6 through the dustproof bearing 7 and then is transmitted to the reciprocating nut 4, and finally is transmitted to the piston rod 1 through the trapezoidal threads, and the descending of the piston rod 1 is realized.
The beneficial effects of this technical scheme are as follows:
according to the jack with the fine adjustment and locking functions, the oil return valve 9 is closed before jacking, the oil return valve 9 is opened when descending, and the dustproof bearing 7 is arranged, so that the jack can be used in environments with large vibration, sand dust, oil stain and crosswind, and the service environment of the jack is greatly improved. Reciprocating nut 4, retaining ring 3 and the screw 6, dust bearings 7 and the spring quick-release pin 5 that set up on the reciprocating nut 4, retaining ring 3 support power source when forcing the decline as the jack for this jack adjustment accuracy is high, and the operation is consuming time weak, and is lower to operation team's cooperation. The invention integrates stroke fine adjustment and reliable locking, meets the requirements of horizontal measurement, target correction, equipment disassembly and assembly and the like of a certain unmanned aerial vehicle, and simultaneously realizes low cost, high reliability and high environmental adaptability of the equipment.
Claims (3)
1. The utility model provides a jack with fine tuning and locking function which characterized in that: the quick-release spring bolt comprises a piston rod (1), a guide sleeve (2), a check ring (3), a reciprocating nut (4), a quick-release spring pin (5), a screw (6), a dustproof bearing (7) and an outer barrel (8), wherein the guide sleeve (2) presses the check ring (3) to be installed on the outer barrel (8) in a sealing pipe thread manner, the piston rod (1) is arranged in the outer barrel (8), the reciprocating nut (4) is installed on the piston rod (1), the reciprocating nut (4) is provided with a screw hole, the screw (6) is installed in the screw hole, the screw (6) is provided with a limiting hole, the quick-release spring pin (5) is installed in the limiting hole, the dustproof bearing (7) is installed on the inner side of the reciprocating nut (4) in an interference fit manner, the dustproof bearing (7) is located at the end part of the screw (6), and after the piston rod, reciprocating nut (4) are revolved to laminating uide bushing (2) upper surface, extract spring quick-release round pin (5) and then screw in screw (6), and dust bearing (7) and retaining ring (3) coincidence are gone up to the level projection face this moment, and dust bearing (7) are located retaining ring (3) below, realize the locking of jack.
2. The jack with fine adjustment and locking functions as claimed in claim 1, wherein: the jack is also provided with an oil return valve (9).
3. The jack with fine adjustment and locking functions as claimed in claim 1, wherein: the dustproof bearing (7) adopts a ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010242940.7A CN111410135B (en) | 2020-03-31 | 2020-03-31 | Jack with fine adjustment and locking functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010242940.7A CN111410135B (en) | 2020-03-31 | 2020-03-31 | Jack with fine adjustment and locking functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111410135A CN111410135A (en) | 2020-07-14 |
| CN111410135B true CN111410135B (en) | 2021-06-08 |
Family
ID=71487966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010242940.7A Active CN111410135B (en) | 2020-03-31 | 2020-03-31 | Jack with fine adjustment and locking functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111410135B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB557642A (en) * | 1942-05-20 | 1943-11-29 | Malabar Machine Co | Self-holding jack |
| JPH02112697U (en) * | 1989-02-23 | 1990-09-10 | ||
| AU6196298A (en) * | 1997-04-18 | 1998-10-22 | Russell Catling | Adjustable cabinet supports |
| CN201284206Y (en) * | 2008-09-16 | 2009-08-05 | 戴志玉 | Long-term supporting hydraulic operating gear |
| CN202201677U (en) * | 2011-08-24 | 2012-04-25 | 宁波赛维思机械有限公司 | Difunctional mechanically self-locking jack |
| CN203715168U (en) * | 2014-02-26 | 2014-07-16 | 安徽安凯汽车股份有限公司 | Mounting bracket fixture for luggage rack |
| CN108117003B (en) * | 2016-11-29 | 2019-07-16 | 中国国际海运集装箱(集团)股份有限公司 | Adjustable supporting and lift truck |
| CN207418181U (en) * | 2017-11-13 | 2018-05-29 | 江苏凯恩特机械设备制造有限公司 | A kind of external screw thread mechanical caging double-action hydraulic jack |
| DE102018108609B4 (en) * | 2018-04-11 | 2022-01-20 | Henning Fuhrmann | Working cylinder device with at least one working cylinder unit with mechanical position securing and emergency rod seal that can be retrofitted under load, and method for its operation |
| CN209065327U (en) * | 2018-10-19 | 2019-07-05 | 黄山旅游发展股份有限公司云谷索道分公司 | A kind of maintenance of cableway mentions rope accessory |
| CN210103376U (en) * | 2019-06-20 | 2020-02-21 | 东莞久林吉良净化用品有限公司 | Ear band connecting device for mask production |
-
2020
- 2020-03-31 CN CN202010242940.7A patent/CN111410135B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111410135A (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103287205B (en) | A kind of automatic telescopic direction movement bogey | |
| CN111410135B (en) | Jack with fine adjustment and locking functions | |
| CN110118067A (en) | It is a kind of can travel multiplier iron driller turnbuckle clamp independent-lifting mechanism and method | |
| CN103252777A (en) | Manipulator capable of achieving automatic fine adjustment | |
| CN113189901A (en) | High-precision high-integration heavy intelligent jacking system and method for airplane | |
| CN108692951B (en) | Light automobile traction device strength test device | |
| CN201437221U (en) | Lifting and positioning mechanism used for assembly line of engine or gearbox | |
| CN203293202U (en) | Automatically and finely adjustable mechanical arm | |
| CN203292895U (en) | Milling floating self-positioning clamping device | |
| CN110977899A (en) | Valve assembling platform | |
| CN209064232U (en) | A kind of AGV traction mechanism | |
| CN108311866B (en) | Oil distribution disc press-fitting device and press-fitting method | |
| CN107363520B (en) | A kind of positioning auxiliary device and method for heavy equipment installation | |
| CN111376029A (en) | Balance shaft top cover oil seal installation equipment | |
| CN202212435U (en) | Car depression levelling device controlled by hydraulic servo system | |
| CN109333037B (en) | High-efficient pressure equipment device of fork truck transaxle | |
| CN208931487U (en) | Flexible hydraulic multistage lifts the soft wheel face cart transport system of RGV | |
| CN102730596B (en) | Small-stroke and large-torque automatic jacking mechanism | |
| CN204262235U (en) | Crimping combination bottoming machine | |
| CN209021146U (en) | A kind of forging automatic rotary platform | |
| CN214444313U (en) | Assembling device for hydraulic piston tube | |
| CN209649528U (en) | Large-scale hydro-mechanical drawing double action hydraulic press | |
| CN206362552U (en) | A kind of automobile gearbox testboard positioner | |
| CN105836661A (en) | Hydraulic lifting mechanism capable of achieving two-degree-of-freedom adjustment | |
| CN104162875B (en) | A kind of special tooling for the assembling of jack stage clip |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |