CN112320539B - Low-power double-locking lifting track system and method - Google Patents
Low-power double-locking lifting track system and method Download PDFInfo
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- CN112320539B CN112320539B CN202011309471.2A CN202011309471A CN112320539B CN 112320539 B CN112320539 B CN 112320539B CN 202011309471 A CN202011309471 A CN 202011309471A CN 112320539 B CN112320539 B CN 112320539B
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- screw
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0446—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with screw-nut or worm-screw gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0293—Suspension locking or inhibiting means to avoid movement when car is stopped at a floor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/022—Guideways; Guides with a special shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
- B66B9/025—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by screw-nut drives
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Automation & Control Theory (AREA)
- Transmission Devices (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a locking method of a low-power double-locking lifting rail system, wherein the low-power double-locking lifting rail system comprises the following steps: the motor device is fixed on the bracket and comprises a motor with a brake, a speed reducer and a coupler which are connected in sequence; the trapezoidal screw rod is fixedly connected with the motor device and rotates under the power provided by the motor device; the two screw nuts are oppositely arranged on the trapezoidal screw in the thread direction and move on the trapezoidal screw in the opposite direction under the rotation of the trapezoidal screw; the lever comprises two power arms, a resistance arm and fulcrums, each power arm is fixed with a corresponding screw nut, and the two fulcrums are fixed on the strip-shaped holes of the bracket; and friction plates are fixed on each resistance arm, and the two screw nuts move in opposite directions to drive the friction plates on the two resistance arms to clamp and lock or open. The invention has high automation degree, low labor intensity and reliable locking.
Description
Technical Field
The invention relates to a low-power double-locking lifting track system and a method.
Background
The space launching tower is provided with a lifting platform system with lifting height for meeting the work of docking, testing and the like of various subsets of space aircrafts such as carrier rockets, satellites and spaceships.
Referring to fig. 1-4, a current lifting platform system mainly comprises a track system 2 and a working platform 4, wherein the track system 2 is installed on a fixed base 1, the working platform 4 can lift along a track groove 25 of the track system 2, specifically, a guide wheel 3 is fixed on the working platform 4, and the working platform 4 runs on the track groove 25 through the guide wheel 3 to conduct guiding lifting.
Referring to fig. 2 and 3, the current track system 2 mainly comprises a steel plate 21, a section steel channel 22 and a vertical plate 23; the steel plates 21 are generally two upper and lower, the steel plates 21 are welded with the section steel channels 22 for fixation, the vertical plates 23 are welded on the section steel channels 22, and the section steel channels 22 are provided with track grooves 25. The vertical plate 23 is formed with a long hole 24 according to the specification, and the long hole 24 is used for lifting and locking. As shown in fig. 3, the guide wheels 3 are guided up and down along the track grooves 25 of the profile channel 22.
Referring to fig. 4, taking two long holes on the vertical plate 23 as an example, a first long hole 26 and a second long hole 27 are machined on the vertical plate 23 of the rail of the lifting platform system, and the oil cylinder 5 is installed inside. The lower end of the cylinder body of the oil cylinder 5 is connected with a working platform hinged support 41 through a bolt 7, and the working platform hinged support 41 is welded with the working platform 4. The hinge support 41 of the working platform is provided with a pin hole 42, and the pin 6 manually passes through the pin hole 42 and the second long hole 27 on the vertical plate 23 to fix the working platform 4 at the height position of the second long hole 27.
When the platform needs to ascend, the piston rod 51 of the oil cylinder 5 extends out to reach a uniform height with the first long hole 26, the pin shaft 6 is manually inserted, then the piston rod 51 of the oil cylinder 5 is retracted, after the pin shaft 6 at the second long hole 27 is loosened, the pin shaft 6 is pulled out, the piston rod 51 of the oil cylinder 5 continues to be retracted, and the piston rod 51 of the oil cylinder 5 is fixed at the first long hole 26, and the cylinder body of the oil cylinder 5 drives the working platform 4 to move upwards to reach a specified position.
The descending flow is operated reversely.
The drawbacks of this lifting platform system are:
(1) The track system is complex, and the workload of welding the vertical plate and machining holes is high;
(2) The pin shaft is manually inserted in the lifting process, so that the operation is complicated and the workload is high;
(3) The device is affected by the segmentation of the long holes on the vertical plate, and can not stop at any position along with stop and walk.
Disclosure of Invention
The invention provides a low-power double-locking lifting track system and a method thereof, which aim at the defects existing in the prior art.
Specifically, the inventor firstly improves the mode of matching and fixing the bolt and the vertical plate bolt hole, and proposes to use a brand new low-power double-locking lifting rail system, which has high automation degree, low labor intensity and reliable locking.
Meanwhile, a low-power double-locking lifting rail method of the low-power double-locking lifting rail system is provided.
The adopted technical scheme is as follows:
in a first aspect, the present invention provides a low-power dual locking lifting track system, including a low-power dual locking mechanism, the low-power dual locking mechanism includes:
the motor device is fixed on the bracket and comprises a motor with a brake, a speed reducer and a coupler which are connected in sequence, wherein the motor device is used for providing power;
the trapezoidal screw rod is fixedly connected with the motor device and rotates under the power provided by the motor device;
the screw nuts are arranged on the trapezoidal screw rod in opposite screw directions, and move on the trapezoidal screw rod in opposite directions under the rotation of the trapezoidal screw rod;
the lever comprises two levers, each lever comprises a power arm, a resistance arm and a fulcrum, each power arm is fixed with a corresponding screw nut, and the two fulcrums are fixed on the strip-shaped holes of the bracket; a friction plate is fixed on each resistance arm, and the two screw nuts move in opposite directions to drive the friction plates on the two resistance arms to clamp and lock or open;
the steel plate is characterized by further comprising a section steel channel, one end of the steel plate of the section steel channel is elongated, the elongated part is a track, the track can be clamped and locked or released by the friction plates on the two resistance arms, and the track and the friction plates are matched and braked.
Further, two bearings are fixed on the trapezoidal screw at intervals, and the moving range of the two screw nuts is limited between the two bearings.
Further, the fulcrum is a fulcrum formed on the bar-shaped hole of the bracket and the through hole of the lever inserted through a pin shaft, the pin shaft can move on the bar-shaped hole, and the lead screw nut is allowed to move on the trapezoidal lead screw.
Further, the power arm is fixedly connected with the screw nut through a bolt.
In a second aspect, the present invention provides a low-power dual locking lifting rail method of the low-power dual locking lifting rail system, which includes the following steps: the motor brake is opened, the motor rotates positively, the trapezoidal screw is driven to rotate through the speed reducer and the coupler, the two screw nuts are driven to be far away from each other, the lever is driven to rotate, and therefore the friction plates on the two resistance arms are driven to clamp and lock.
The invention has the beneficial effects that:
after locking, the motor is braked by a brake, and meanwhile, the thread lift angle of the trapezoidal screw is generally smaller than the static friction angle, and the trapezoidal screw has a self-locking function, so that the screw nut cannot loosen, and double locking is realized to ensure safety.
In addition, the lever and the speed reducer can realize the effect of high friction force generated by the low-power motor, and the low-power motor has low cost and low energy consumption.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only embodiments of the invention and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a conventional lifting platform system.
Fig. 2 is a schematic perspective view of a track system in the prior art.
Fig. 3 is a schematic top view of a track system with guide wheels.
Fig. 4 is a schematic structural diagram of a lifting process of a current lifting platform system.
Fig. 5 is a schematic structural diagram of a low-power dual locking lifting rail system in embodiment 1.
Fig. 6 is a schematic top view of a low-power dual locking lifting rail system according to embodiment 2.
In FIGS. 1-4, a 1-immobilization base; 2-track system; 3-guiding wheels; 4-a working platform; 21-a steel plate; 22-section steel channel; 23-vertical plates; 24-long holes; 25-track grooves; 6-pin shafts; 7-a bolt; 26-a first elongated hole; 27-a second elongated hole; 5-an oil cylinder; 51-a piston rod; 41-a working platform hinged support.
In fig. 5-6, 101-the stent; 102-an electric motor; 103-a speed reducer; 104-a coupling; 105-bearing; 106-trapezoidal screw rods; 107-screw nuts; 108-a power arm; 109-lever; 110-fulcrum; 111-friction plates; 112-track; 113-resistance arm.
Detailed Description
The technical solutions of 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 apparent that the described embodiments are only preferred embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 5, a low power double locking lift rail system includes a low power double locking mechanism including a motor arrangement, a trapezoidal screw 106, a lead screw nut 107, and a lever 109.
The motor device is fixed on the bracket 101, and the bracket 101 can be made of steel plate. The motor 102 device comprises a motor 102, a speed reducer 103 and a coupling 104, wherein the tail end of the motor 102 is provided with a brake. The motor 102, the speed reducer 103 and the coupling 104 are connected in order. The motor device is used for providing power.
The acme screw 106 is fixedly connected to the motor device, specifically, is fixedly connected coaxially with the coupling 104. The acme screw 106 rotates under the power provided by the motor 102.
Two lead screw nuts 107, which are mounted on the acme screw 106 in opposite directions of threads, and the two lead screw nuts 107 move on the acme screw 106 in opposite directions when the acme screw 106 rotates.
The lever 109, two of which each include a power arm 108, a resistance arm 113, and a fulcrum 110, each power arm 108 is fixed to a corresponding one of the lead screw nuts 107, and specifically, the power arm 108 and the lead screw nut 107 may be fixedly connected by bolts. Two fulcrums 110 are fixed on the strip-shaped holes of the bracket 101; each resistance arm 113 is fixed with a friction plate 111, and the two screw nuts 107 move in opposite directions to drive the friction plates 111 on the two resistance arms 113 to clamp and lock or open. Specifically, the fulcrum 110 is a fulcrum 110 formed on a through hole of the lever 109 and a bar-shaped hole of the bracket 101 through a pin shaft, which is movable on the bar-shaped hole, allowing the lead screw nut 107 to be movable on the trapezoidal lead screw 106. The bar-shaped hole adjusts for the change in distance of the lead screw nut from the fulcrum 110 during movement.
Further, two bearings 105 may be fixed on the trapezoidal screw 106 at intervals, and the moving range of the two screw nuts 107 may be limited between the two bearings 105.
The acme screw 106 is typically provided with a self-locking function. The lead screw 106 has a smaller lead angle than the static friction angle, so that the lead screw has a self-locking function. The brake and motor 102 may be electrically connected to a controller to control the motor 102 and brake.
The low-power double-locking lifting rail method of the low-power double-locking lifting rail system comprises the following steps of: the motor 102 is started, the motor 102 rotates positively, the trapezoidal screw 106 is driven to rotate through the speed reducer 103 and the coupler 104, the two screw nuts are driven to be far away from each other, the lever 109 is driven to rotate, and the friction plates 111 on the two resistance arms 113 are driven to clamp and lock, so that the first heavy locking is realized. Meanwhile, the trapezoidal screw 106 has a self-locking function, so that the screw nut cannot loosen, which is a second locking. Thereby realizing double locking and ensuring safety.
In addition, the design of the lever 109 and the design of the speed reducer 103 can realize the effect of generating high friction force by the low-power motor 102, and the low-cost and low-energy consumption can be realized.
The unlocking method of the low-power double-locking lifting track system comprises the following steps: the motor 102 is turned on, the motor 102 is turned back, the trapezoidal screw 106 is driven to rotate through the speed reducer 103 and the coupler 104, the two screw nuts are driven to be close to each other, the lever 109 is driven to rotate, and the friction plates 111 on the two resistance arms 113 are driven to be released, so that the locking is released.
Example 2
Referring to fig. 6, a low power double locking lifting rail system of this embodiment includes the low power double locking lifting rail system of embodiment 1; the lifting rail mechanism is provided with an extended rail 112, and the rail 112 can be clamped, locked or released by friction plates 111 on two resistance arms 113.
The extended rail 112 may be disposed on one side of the lifting rail mechanism, or may be disposed on both sides of the lifting rail mechanism.
The track 112 is a completely new track design. Compared with the existing track system, the vertical plate of the existing track system is omitted, one end of the steel plate of the section steel channel is extended, and the extended part is the track 112. The rail 112 is engaged with the friction plate 111 to brake.
Wherein, the low power dual locking mechanism can be arranged along the length direction of the track 112 in a plurality of ways and used simultaneously to increase the locking force and the safety factor.
The invention changes the existing pin shaft type locking into friction type locking, and then realizes lifting by utilizing the basic principle of telescopic lifting of the oil cylinder. The oil cylinder stretches and contracts to drive the low-power double-locking lifting track system and the working platform to any position, the low-power double-locking lifting track system and the working platform keep basically synchronous height distance, and then the working platform can be locked on the track through the low-power double-locking lifting track system.
The low-power double-locking lifting rail system has the following advantages:
(1) The track system is simplified, and the processing and manufacturing difficulty and cost are reduced; and the workload of welding the vertical plate and machining holes is not required.
(2) The locking has the advantages of high automation degree and low labor intensity, and a pin shaft is not required to be manually inserted in the lifting process.
(3) The motor brake is matched with the trapezoidal screw rod for use, and the locking reliability is high. The upright plate is not needed, and the sectional influence of long holes on the upright plate is avoided. The telescopic lifting of the following oil cylinder can stop at any position along with stopping and walking.
(4) The friction plate area, lever proportion and other parameters can be adjusted, the locking friction force can be adjusted in a large range, and the system popularization adaptability is strong.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (5)
1. A low power double lock lift track system comprising a low power double lock mechanism, the low power double lock mechanism comprising:
the motor device is fixed on the bracket and comprises a motor with a brake, a speed reducer and a coupler which are connected in sequence, wherein the motor device is used for providing power;
the trapezoidal screw rod is fixedly connected with the motor device and rotates under the power provided by the motor device;
the screw nuts are arranged on the trapezoidal screw rod in opposite screw directions, and move on the trapezoidal screw rod in opposite directions under the rotation of the trapezoidal screw rod;
the lever comprises two levers, each lever comprises a power arm, a resistance arm and a fulcrum, each power arm is fixed with a corresponding screw nut, and the two fulcrums are fixed on the strip-shaped holes of the bracket; a friction plate is fixed on each resistance arm, and the two screw nuts move in opposite directions to drive the friction plates on the two resistance arms to clamp and lock or open;
the steel plate is characterized by further comprising a section steel channel, one end of the steel plate of the section steel channel is elongated, the elongated part is a track, the track can be clamped and locked or released by the friction plates on the two resistance arms, and the track and the friction plates are matched and braked.
2. The low power double locking lifting rail system of claim 1 wherein two bearings are fixed on the acme screw at intervals limiting the range of movement of two of the lead screw nuts between the two bearings.
3. The low power double locking lifting rail system of claim 1 wherein the fulcrum is a fulcrum formed on a through hole through which a lever is inserted and the bar-shaped hole of the bracket by a pin that is movable on the bar-shaped hole, allowing the lead screw nut to be movable on the trapezoidal lead screw.
4. The low power double locking lift rail system of claim 1 wherein the power arm is fixedly connected to the lead screw nut by a bolt.
5. A low power double locking lift rail method of a low power double locking lift rail system as defined in any one of claims 1-4, comprising the steps of: motor brake is opened and motor is positive
The trapezoid screw rod is driven to rotate through the speed reducer and the coupler to drive the two screw rod nuts to be far away from each other,
the lever is driven to rotate, so that friction plates on the two resistance arms are driven to clamp and lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011309471.2A CN112320539B (en) | 2020-11-20 | 2020-11-20 | Low-power double-locking lifting track system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011309471.2A CN112320539B (en) | 2020-11-20 | 2020-11-20 | Low-power double-locking lifting track system and method |
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| Publication Number | Publication Date |
|---|---|
| CN112320539A CN112320539A (en) | 2021-02-05 |
| CN112320539B true CN112320539B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011309471.2A Active CN112320539B (en) | 2020-11-20 | 2020-11-20 | Low-power double-locking lifting track system and method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664230A (en) * | 1984-03-23 | 1987-05-12 | Olsen Lawrence O | Elevator |
| EP0767134A2 (en) * | 1995-10-04 | 1997-04-09 | WITTUR AUFZUGTEILE GmbH & Co. | Elevator system and its building method |
| CN205114770U (en) * | 2015-11-06 | 2016-03-30 | 苏州亨通智能精工装备有限公司 | Heavily loaded companion ladder of multistage automation |
| CN106315343A (en) * | 2015-07-01 | 2017-01-11 | 天津市国泰电梯部件有限公司 | Rapid connector for elevator guide rail section |
| CN106629287A (en) * | 2016-12-27 | 2017-05-10 | 廖忠民 | On-track maintenance supporting device for gear and rack lifting equipment |
| CN110817645A (en) * | 2019-10-25 | 2020-02-21 | 湖南大举信息科技有限公司 | Elevator brake system |
| CN213622818U (en) * | 2020-11-20 | 2021-07-06 | 中国人民解放军63921部队 | Low-power double-locking lifting track system |
-
2020
- 2020-11-20 CN CN202011309471.2A patent/CN112320539B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664230A (en) * | 1984-03-23 | 1987-05-12 | Olsen Lawrence O | Elevator |
| EP0767134A2 (en) * | 1995-10-04 | 1997-04-09 | WITTUR AUFZUGTEILE GmbH & Co. | Elevator system and its building method |
| CN106315343A (en) * | 2015-07-01 | 2017-01-11 | 天津市国泰电梯部件有限公司 | Rapid connector for elevator guide rail section |
| CN205114770U (en) * | 2015-11-06 | 2016-03-30 | 苏州亨通智能精工装备有限公司 | Heavily loaded companion ladder of multistage automation |
| CN106629287A (en) * | 2016-12-27 | 2017-05-10 | 廖忠民 | On-track maintenance supporting device for gear and rack lifting equipment |
| CN110817645A (en) * | 2019-10-25 | 2020-02-21 | 湖南大举信息科技有限公司 | Elevator brake system |
| CN213622818U (en) * | 2020-11-20 | 2021-07-06 | 中国人民解放军63921部队 | Low-power double-locking lifting track system |
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| Publication number | Publication date |
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| CN112320539A (en) | 2021-02-05 |
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